{"title":"Shoe","description":null,"products":[{"product_id":"earthing-shoe-diy-kit","title":"Shoe Sync DIY Earthing Shoe Kit","description":"\u003cp\u003eThe Shoe Sync is an earthing shoe DIY (Do It Yourself) Kit comes with everything you need to turn your existing minimalist shoes into grounded footwear. With this easy to install kit and a hammer, anyone can transform their existing thin soled shoes (½\"thick or less) into conductive footwear--to utilize the health promoting benefits of connecting with the Earth!\u003c\/p\u003e\n\u003cp\u003eIn this kit you will receive a combination of five different tools and conductive materials. The detailed documentation instructs you how to install a copper rivet through the optimal location in the sole of your shoes to make contact with your foot and the ground simultaneously.\u003c\/p\u003e\n\u003cp\u003e\u003ca name=\"video\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003e\n\u003cstrong\u003eShoe Sync:\u003c\/strong\u003e \u003cem\u003eMaintain Your Primal Connection\u003c\/em\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/exMjdfd2AYk\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch3\u003eShoe requirements\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMust have less than a 1\/2\" thick dense sole.\u003c\/li\u003e\n\u003cli\u003eMust be able to unlace shoe to access the insole with tooling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTools required\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ehammer\u003c\/li\u003e\n\u003cli\u003emarker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat comes in the (1 pair) kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003erivets x2\u003c\/li\u003e\n\u003cli\u003ewashers x3\u003c\/li\u003e\n\u003cli\u003ehole punch \/ rivet installer\u003c\/li\u003e\n\u003cli\u003ecutting board\u003c\/li\u003e\n\u003cli\u003elong neck wire cutters\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Earth Runners","offers":[{"title":"FULL KIT for 1 Pair of Shoes","offer_id":30049120722,"sku":null,"price":35.0,"currency_code":"USD","in_stock":true},{"title":"FULL KIT for 5 Pairs of shoes","offer_id":30511748946,"sku":null,"price":44.0,"currency_code":"USD","in_stock":false},{"title":"FULL KIT for 10 Pairs of shoes","offer_id":39298628550738,"sku":null,"price":49.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/Shoe_sync_product_image_2025_logo.jpg?v=1744156645"},{"product_id":"ion-sync-plugs-for-earthing-shoes","title":"iON SYNC® DIY Earthing Shoe Kit","description":"\u003cp\u003eOur innovative iON SYNC® Earthing Plugs were developed through years of dedicated research and development to create a highly durable, conductive solution for earthing-shoe enthusiasts.\u003c\/p\u003e\n\n\u003cp\u003eInstalled through the soles of shoes, iON SYNC® plugs provide a grounding experience that replicates the benefits of being barefoot.\u003c\/p\u003e\n\n\u003cp\u003eThe plugs are available in three sizes for shoe soles ranging from 4–15 mm (3\/16–5\/8 in.) thick. Refer to the sizing chart below to find the right size for your shoes, followed by written and video installation instructions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSkive:\u003c\/strong\u003e If your shoe does not have a suitable recess in its outsole tread for the plug’s barb, use our skiving tool (sold separately) to remove the necessary lug and create one. Watch the video below to learn how to use the Skive.\u003c\/p\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/ion_size_chart_1_2024_logo.jpg?v=1726519115\" alt=\"iON SYNC Earthing Plug size chart\" loading=\"lazy\" width=\"1200\" height=\"1200\"\u003e\n\n\u003ch5\u003eBase sole thickness = stack height − lug height\u003c\/h5\u003e\n\n\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/WZDhJVsGB4g?si=zbOuxRvbVvDJvA9y\u0026amp;rel=0\" title=\"How to install iON SYNC Earthing Plugs\" loading=\"lazy\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen\u003e\u003c\/iframe\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/2024_logo_ion_how_to_page_1_with_measuring_tool_v2.jpg?v=1726603126\" alt=\"iON SYNC installation instructions, page 1\" loading=\"lazy\"\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/ion_how_to_page_2_mike_-_with_QR_code_copy.jpg?v=1712770574\" alt=\"iON SYNC installation instructions, page 2\" loading=\"lazy\"\u003e\n\n\u003cp\u003eiON SYNC® is \u003ca href=\"https:\/\/www.earthrunners.com\/pages\/ion-sync-patent\" target=\"_blank\" rel=\"noopener\"\u003epatented technology\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\n\u003ch5\u003eWhat if I can’t decide where to put the plug?\u003c\/h5\u003e\n\u003cp\u003eIf you need help choosing the installation location or plug size, contact one of our earthing support experts and include a picture of the bottom of your shoes.\u003c\/p\u003e\n\n\u003ch5\u003eWhat if I need more plugs?\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.earthrunners.com\/products\/refill-ion-sync-diy-earthing-shoe-plus\"\u003eOrder replacement iON SYNC® plugs here\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch5\u003eCan an iON SYNC® Earthing Plug be removed?\u003c\/h5\u003e\n\u003cp\u003eYes. After removing the pull tab, press firmly against the plug’s flat barb surface from the outsole side using a medium-size Phillips screwdriver or an object of similar diameter.\u003c\/p\u003e\n\n\u003ch5\u003eCan a removed plug be reinstalled?\u003c\/h5\u003e\n\u003cp\u003eNo. iON SYNC® plugs are designed for one-time installation. If a plug is compromised, worn, installed incorrectly, or removed, replace it with a new one.\u003c\/p\u003e\n\n\u003ch5\u003eAre iON SYNC® Earthing Plugs watertight?\u003c\/h5\u003e\n\u003cp\u003eWhen properly installed, the compression-fit rubber design forms a watertight seal against the shoe’s outsole. For the best seal:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse the recommended plug size based on the base-sole thickness: stack height minus lug height.\u003c\/li\u003e\n  \u003cli\u003eUse the correct hole-punch size so the plug can compress properly.\u003c\/li\u003e\n  \u003cli\u003eChoose a large, flat outsole area where the barb can make uninterrupted contact.\u003c\/li\u003e\n  \u003cli\u003ePosition the barb in an outsole recess at least 1.5–2 mm deep to protect it from abrasion, blunt force, and excessive wear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eWhat makes the plugs conductive?\u003c\/h5\u003e\n\u003cp\u003eWe worked with leading polymer experts to develop a proprietary rubber compound containing a conductive filler. It creates a conductive network throughout the material that permits the transfer of the low voltages associated with earthing.\u003c\/p\u003e\n\u003cp\u003eAfter more than 15 iterations, we developed a conductive lattice-infused polymer that balances the mechanical durability of shoe-outsole rubber with electrical resistance below 10\u003csup\u003e3\u003c\/sup\u003e ohms.\u003c\/p\u003e\n\n\u003ch5\u003eHow do I determine which plug size to use?\u003c\/h5\u003e\n\u003cp\u003eCalculate the base thickness of your sole by subtracting the lug height from the shoe’s stack height, then refer to the sizing chart. Most manufacturers list the total stack height on the product page. Measure the lug or tread depth at the planned installation point and subtract it from that stack height.\u003c\/p\u003e\n\n\u003ch5\u003eWhat if the base thickness falls between two plug sizes?\u003c\/h5\u003e\n\u003cp\u003eChoose the larger iON SYNC® plug when the base thickness is on the threshold between two sizes.\u003c\/p\u003e\n\n\u003ch5\u003eWill I feel the plug underfoot?\u003c\/h5\u003e\n\u003cp\u003eIf the correctly sized plug is installed in the middle of the sole and properly recessed into the outsole, you may notice it slightly at first. The sensation should normalize after approximately one hour of wear.\u003c\/p\u003e\n\n\u003ch5\u003eDo iON SYNC® Earthing Plugs work with socks?\u003c\/h5\u003e\n\u003cp\u003eYes. Body weight creates contact with the head of the plug, while normal perspiration helps make the sock conductive. Our testing found a negligible difference in measurable voltage reduction between wearing iON SYNC® grounded shoes with and without socks.\u003c\/p\u003e\n\n\u003ch5\u003eHow do different socks affect grounding?\u003c\/h5\u003e\n\u003cp\u003eThe two main factors are sock thickness and the wicking ability of the fibers. Heavier socks create more distance between the foot and the plug and require more perspiration before becoming conductive.\u003c\/p\u003e\n\u003cp\u003eNatural fibers generally wick well, as do some engineered synthetics. Polyester COOLMAX® and similar fibers with capillary filament profiles can develop conductive properties through perspiration.\u003c\/p\u003e\n\n\u003ch5\u003eDo iON SYNC® Earthing Plugs release microplastics?\u003c\/h5\u003e\n\u003cp\u003eThe plugs use a food-safe polymer designed not to release microplastics into food or the environment.\u003c\/p\u003e\n\n\u003ch5\u003eDo iON SYNC® Earthing Plugs contain latex?\u003c\/h5\u003e\n\u003cp\u003eNo. iON SYNC® Earthing Plugs are latex-free.\u003c\/p\u003e\n\n\u003ch5\u003eHow does the iON SYNC® rubber plug kit compare with the Shoe Sync copper rivet kit?\u003c\/h5\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComfort:\u003c\/strong\u003e iON SYNC® rubber plugs are more comfortable.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e iON SYNC® rubber plugs are easier to install.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConductivity:\u003c\/strong\u003e iON SYNC® rubber plugs are less conductive than Shoe Sync copper rivets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch5\u003eDo grounded plugs increase the risk from ground current caused by a nearby lightning strike?\u003c\/h5\u003e\n\u003cp\u003eWearing iON SYNC® grounded footwear is similar to being barefoot during a storm. The plugs are designed for the low-amperage, low-voltage range associated with earthing, not the transfer of harmful electrical current. As a general safety precaution, avoid exposed outdoor areas during lightning storms.\u003c\/p\u003e\n\n\u003ch5\u003eWhat if it is difficult to pull the barb through the hole and seat it on the outsole?\u003c\/h5\u003e\n\u003col\u003e\n  \u003cli\u003eUse a screwdriver, pen, or similarly sized object to gently pre-stretch the hole immediately before installing the plug.\u003c\/li\u003e\n  \u003cli\u003eTry the next larger, slightly longer plug size.\u003c\/li\u003e\n  \u003cli\u003eAs a last resort, use the next larger hole punch to create a slightly larger opening.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch4\u003eSpecs\u003c\/h4\u003e\n\n\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/vBIYpAzibfE?si=JVGf2aCtJi3f2xIq\u0026amp;rel=0\" title=\"iON SYNC Earthing Plug specifications\" loading=\"lazy\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen\u003e\u003c\/iframe\u003e\n\n\u003cp\u003eOur collaboration with a renowned compounding company resulted in a unique composite material that combines the durability of shoe-outsole rubber with the conductivity required for therapeutic earthing, measuring less than 10\u003csup\u003e3\u003c\/sup\u003e ohms of resistance.\u003c\/p\u003e\n\n\u003cdiv class=\"flex flex-wrap\"\u003e\n  \u003cdiv class=\"text-center width-full m:px-3 m:width-1\/2 l:width-1\/2\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/iON_SYNC_Earthing_Plugs_diagram3_copy_2_600x600.jpg?v=1712089457\" alt=\"iON SYNC Earthing Plug construction diagram\" loading=\"lazy\" width=\"600\" height=\"600\"\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"text-center width-full m:px-3 m:width-1\/2 l:width-1\/2\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/conductive_network_infused3_0a113738-d225-40b2-97b0-06d64558da3a_600x600.jpg?v=1701843830\" alt=\"Conductive network infused into the iON SYNC polymer\" loading=\"lazy\" width=\"600\" height=\"600\"\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eiON SYNC® is \u003ca href=\"https:\/\/www.earthrunners.com\/pages\/ion-sync-patent\" target=\"_blank\" rel=\"noopener\"\u003epatented technology\u003c\/a\u003e.\u003c\/p\u003e\n","brand":"iON SYNC®","offers":[{"title":"FULL KIT for 1 pair of shoes - SMALL plugs","offer_id":40638920786002,"sku":null,"price":21.0,"currency_code":"USD","in_stock":true},{"title":"FULL KIT for 1 pair of shoes - MEDIUM plugs","offer_id":40638920818770,"sku":null,"price":21.0,"currency_code":"USD","in_stock":true},{"title":"FULL KIT for 1 pair of shoes - LARGE plugs","offer_id":40638920851538,"sku":null,"price":22.0,"currency_code":"USD","in_stock":true},{"title":"FULL KIT for 3 pairs of shoes - Variety Pack (S, M, L)","offer_id":42549710127186,"sku":null,"price":40.0,"currency_code":"USD","in_stock":false},{"title":"FULL KIT for 3 pairs of shoes - SMALL plugs","offer_id":42549710159954,"sku":null,"price":38.0,"currency_code":"USD","in_stock":false},{"title":"FULL KIT for 3 pairs of shoes - MEDIUM plugs","offer_id":42549710192722,"sku":null,"price":39.0,"currency_code":"USD","in_stock":false},{"title":"FULL KIT for 3 pairs of shoes - LARGE plugs","offer_id":42549710225490,"sku":null,"price":40.0,"currency_code":"USD","in_stock":false},{"title":"FULL KIT for 9 pairs of shoes - Variety Pack (S, M, L)","offer_id":42549710258258,"sku":null,"price":90.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/ionsyncproductimage2024logocopy.jpg?v=1726604426"},{"product_id":"refill-ion-sync-diy-earthing-shoe-plus","title":"REFILL: iON SYNC® DIY Earthing Shoe Plugs","description":"\u003cp\u003eOur innovative iON SYNC® Earthing Plugs were developed through years of dedicated research and development to create a highly durable, conductive solution for earthing-shoe enthusiasts.\u003c\/p\u003e\n\u003cp\u003eInstalled through the soles of shoes, iON SYNC® plugs provide a grounding experience that replicates the benefits of being barefoot.\u003c\/p\u003e\n\u003cp\u003eThe plugs are available in three sizes for shoe soles ranging from 4–15 mm (3\/16–5\/8 in.) thick. Refer to the sizing chart below to find the right size for your shoes, followed by written and video installation instructions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSkive:\u003c\/strong\u003e If your shoe does not have a suitable recess in its outsole tread for the plug’s barb, use our skiving tool (sold separately) to remove the necessary lug and create one. Watch the video below to learn how to use the Skive.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/ion_size_chart_1_2024_logo.jpg?v=1726519115\" alt=\"iON SYNC Earthing Plug size chart\" loading=\"lazy\" width=\"1200\" height=\"1200\"\u003e\u003c\/p\u003e\n\u003ch5\u003eBase sole thickness = stack height − lug height\u003c\/h5\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/WZDhJVsGB4g?si=zbOuxRvbVvDJvA9y\u0026amp;rel=0\" title=\"How to install iON SYNC Earthing Plugs\" loading=\"lazy\"\u003e\u003c\/iframe\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/2024_logo_ion_how_to_page_1_with_measuring_tool_v2.jpg?v=1726603126\" alt=\"iON SYNC installation instructions, page 1\" loading=\"lazy\"\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/ion_how_to_page_2_mike_-_with_QR_code_copy.jpg?v=1712770574\" alt=\"iON SYNC installation instructions, page 2\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003cp\u003eiON SYNC® is \u003ca href=\"https:\/\/www.earthrunners.com\/pages\/ion-sync-patent\" rel=\"noopener\" target=\"_blank\"\u003epatented technology\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003ch5\u003eWhat if I can’t decide where to put the plug?\u003c\/h5\u003e\n\u003cp\u003eIf you need help choosing the installation location or plug size, contact one of our earthing support experts and include a picture of the bottom of your shoes.\u003c\/p\u003e\n\u003ch5\u003eCan an iON SYNC® Earthing Plug be removed?\u003c\/h5\u003e\n\u003cp\u003eYes. After removing the pull tab, press firmly against the plug’s flat barb surface from the outsole side using a medium-size Phillips screwdriver or an object of similar diameter.\u003c\/p\u003e\n\u003ch5\u003eCan a removed plug be reinstalled?\u003c\/h5\u003e\n\u003cp\u003eNo. iON SYNC® plugs are designed for one-time installation. If a plug is compromised, worn, installed incorrectly, or removed, replace it with a new one.\u003c\/p\u003e\n\u003ch5\u003eAre iON SYNC® Earthing Plugs watertight?\u003c\/h5\u003e\n\u003cp\u003eWhen properly installed, the compression-fit rubber design forms a watertight seal against the shoe’s outsole. For the best seal:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse the recommended plug size based on the base-sole thickness: stack height minus lug height.\u003c\/li\u003e\n\u003cli\u003eUse the correct hole-punch size so the plug can compress properly.\u003c\/li\u003e\n\u003cli\u003eChoose a large, flat outsole area where the barb can make uninterrupted contact.\u003c\/li\u003e\n\u003cli\u003ePosition the barb in an outsole recess at least 1.5–2 mm deep to protect it from abrasion, blunt force, and excessive wear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat makes the plugs conductive?\u003c\/h5\u003e\n\u003cp\u003eWe worked with leading polymer experts to develop a proprietary rubber compound containing a conductive filler. It creates a conductive network throughout the material that permits the transfer of the low voltages associated with earthing.\u003c\/p\u003e\n\u003cp\u003eAfter more than 15 iterations, we developed a conductive lattice-infused polymer that balances the mechanical durability of shoe-outsole rubber with electrical resistance below 10\u003csup\u003e3\u003c\/sup\u003e ohms.\u003c\/p\u003e\n\u003ch5\u003eHow do I determine which plug size to use?\u003c\/h5\u003e\n\u003cp\u003eCalculate the base thickness of your sole by subtracting the lug height from the shoe’s stack height, then refer to the sizing chart. Most manufacturers list the total stack height on the product page. Measure the lug or tread depth at the planned installation point and subtract it from that stack height.\u003c\/p\u003e\n\u003ch5\u003eWhat if the base thickness falls between two plug sizes?\u003c\/h5\u003e\n\u003cp\u003eChoose the larger iON SYNC® plug when the base thickness is on the threshold between two sizes.\u003c\/p\u003e\n\u003ch5\u003eWill I feel the plug underfoot?\u003c\/h5\u003e\n\u003cp\u003eIf the correctly sized plug is installed in the middle of the sole and properly recessed into the outsole, you may notice it slightly at first. The sensation should normalize after approximately one hour of wear.\u003c\/p\u003e\n\u003ch5\u003eDo iON SYNC® Earthing Plugs work with socks?\u003c\/h5\u003e\n\u003cp\u003eYes. Body weight creates contact with the head of the plug, while normal perspiration helps make the sock conductive. Our testing found a negligible difference in measurable voltage reduction between wearing iON SYNC® grounded shoes with and without socks.\u003c\/p\u003e\n\u003ch5\u003eHow do different socks affect grounding?\u003c\/h5\u003e\n\u003cp\u003eThe two main factors are sock thickness and the wicking ability of the fibers. Heavier socks create more distance between the foot and the plug and require more perspiration before becoming conductive.\u003c\/p\u003e\n\u003cp\u003eNatural fibers generally wick well, as do some engineered synthetics. Polyester COOLMAX® and similar fibers with capillary filament profiles can develop conductive properties through perspiration.\u003c\/p\u003e\n\u003ch5\u003eDo iON SYNC® Earthing Plugs release microplastics?\u003c\/h5\u003e\n\u003cp\u003eThe plugs use a food-safe polymer designed not to release microplastics into food or the environment.\u003c\/p\u003e\n\u003ch5\u003eDo iON SYNC® Earthing Plugs contain latex?\u003c\/h5\u003e\n\u003cp\u003eNo. iON SYNC® Earthing Plugs are latex-free.\u003c\/p\u003e\n\u003ch5\u003eHow does the iON SYNC® rubber plug kit compare with the Shoe Sync copper rivet kit?\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComfort:\u003c\/strong\u003e iON SYNC® rubber plugs are more comfortable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e iON SYNC® rubber plugs are easier to install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductivity:\u003c\/strong\u003e iON SYNC® rubber plugs are less conductive than Shoe Sync copper rivets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eDo grounded plugs increase the risk from ground current caused by a nearby lightning strike?\u003c\/h5\u003e\n\u003cp\u003eWearing iON SYNC® grounded footwear is similar to being barefoot during a storm. The plugs are designed for the low-amperage, low-voltage range associated with earthing, not the transfer of harmful electrical current. As a general safety precaution, avoid exposed outdoor areas during lightning storms.\u003c\/p\u003e\n\u003ch5\u003eWhat if it is difficult to pull the barb through the hole and seat it on the outsole?\u003c\/h5\u003e\n\u003col\u003e\n\u003cli\u003eUse a screwdriver, pen, or similarly sized object to gently pre-stretch the hole immediately before installing the plug.\u003c\/li\u003e\n\u003cli\u003eTry the next larger, slightly longer plug size.\u003c\/li\u003e\n\u003cli\u003eAs a last resort, use the next larger hole punch to create a slightly larger opening.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eSpecs\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/vBIYpAzibfE?si=JVGf2aCtJi3f2xIq\u0026amp;rel=0\" title=\"iON SYNC Earthing Plug specifications\" loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003eOur collaboration with a renowned compounding company resulted in a unique composite material that combines the durability of shoe-outsole rubber with the conductivity required for therapeutic earthing, measuring less than 10\u003csup\u003e3\u003c\/sup\u003e ohms of resistance.\u003c\/p\u003e\n\u003cdiv class=\"flex flex-wrap\"\u003e\n\u003cdiv class=\"text-center width-full m:px-3 m:width-1\/2 l:width-1\/2\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/iON_SYNC_Earthing_Plugs_diagram3_copy_2_600x600.jpg?v=1712089457\" alt=\"iON SYNC Earthing Plug construction diagram\" loading=\"lazy\" width=\"600\" height=\"600\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"text-center width-full m:px-3 m:width-1\/2 l:width-1\/2\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/conductive_network_infused3_0a113738-d225-40b2-97b0-06d64558da3a_600x600.jpg?v=1701843830\" alt=\"Conductive network infused into the iON SYNC polymer\" loading=\"lazy\" width=\"600\" height=\"600\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eiON SYNC® is \u003ca href=\"https:\/\/www.earthrunners.com\/pages\/ion-sync-patent\" rel=\"noopener\" target=\"_blank\"\u003epatented technology\u003c\/a\u003e.\u003c\/p\u003e","brand":"iON SYNC®","offers":[{"title":"REFILL for 3 pairs of shoes - SMALL plugs","offer_id":40638921211986,"sku":null,"price":27.0,"currency_code":"USD","in_stock":true},{"title":"REFILL for 3 pairs of shoes - MEDIUM plugs","offer_id":40638921244754,"sku":null,"price":29.0,"currency_code":"USD","in_stock":true},{"title":"REFILL for 3 pairs of shoes - LARGE plugs","offer_id":40638921277522,"sku":null,"price":30.0,"currency_code":"USD","in_stock":true},{"title":"REFILL for 9 pairs of shoes - S M \u0026 L plugs (3x each)","offer_id":40638921310290,"sku":null,"price":81.0,"currency_code":"USD","in_stock":true},{"title":"REFILL for 5 pairs of shoes - SMALL plugs","offer_id":40640924745810,"sku":null,"price":42.0,"currency_code":"USD","in_stock":true},{"title":"REFILL for 5 pairs of shoes - MEDIUM plugs","offer_id":40640924811346,"sku":null,"price":46.0,"currency_code":"USD","in_stock":true},{"title":"REFILL for 5 pairs of shoes - LARGE plugs","offer_id":40640925302866,"sku":null,"price":48.0,"currency_code":"USD","in_stock":true},{"title":"REFILL for 15 pairs of shoes - S M \u0026 L plugs (5x each)","offer_id":40640925696082,"sku":null,"price":125.0,"currency_code":"USD","in_stock":true},{"title":"Skive - lug removal tool","offer_id":40640926777426,"sku":null,"price":7.0,"currency_code":"USD","in_stock":true},{"title":"Hole Punch - 4mm","offer_id":42030444675154,"sku":null,"price":3.0,"currency_code":"USD","in_stock":true},{"title":"Hole Punch - 5mm","offer_id":42030444707922,"sku":null,"price":3.0,"currency_code":"USD","in_stock":true},{"title":"Hole Punch - 6mm","offer_id":42030444740690,"sku":null,"price":3.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/ionplugscopy_7c781bfb-2fcb-41f9-a768-17622c33e74c.jpg?v=1702065754"},{"product_id":"ion-sync-tolos-shoes","title":"iON SYNC Tolos Shoes","description":"\u003cp\u003eWe're thrilled to announce the launch of our first barefoot sneaker: iON SYNC® Tolos Shoes.\u003c\/p\u003e\n\u003cp\u003eWe've equipped Tolos barefoot shoes with our groundbreaking iON SYNC® Earthing Plugs to offer a shoe designed for biohackers, nature lovers, and rewilding enthusiasts alike.\u003c\/p\u003e\n\u003cp\u003eOur iON SYNC Earthing Plugs have been years in the making- a highly durable and conductive innovation that replicates the barefoot experience like never before. Integrated seamlessly into the soles of TOLOS, they provide an unmatched grounding experience to help balance your body's natural energy.\u003c\/p\u003e\n\u003cp\u003eAvailable in black\/tan, black\/black, and white\/white, iON SYNC® Tolos Shoes combine minimalist style with advanced grounding technology to keep you connected to the Earth with every step.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/conductive_network_infused3_0a113738-d225-40b2-97b0-06d64558da3a_600x600.jpg?v=1701843830\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eiON SYNC® is \u003ca href=\"https:\/\/www.earthrunners.com\/pages\/ion-sync-patent\" title=\"iON patent\" rel=\"noopener\" target=\"_blank\"\u003ePatented Technology\u003c\/a\u003e\u003c\/p\u003e\n\u003ch4\u003eSpecs\u003c\/h4\u003e\n\u003cp\u003eiON SYNC Archetype 2.0 voltmeter test video\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/hPW1CdBLlRY?si=0P08IUurigAwk7Jr?rel=0\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003eOur collaboration with a renowned compounding company, known for its work with top technology firms such as Apple, Tesla, and SpaceX, has resulted in the development of a unique iON SYNC composite material. This material blends the robust properties of shoe outsole rubber with the required conductivity to meet the standards for therapeutic earthing (less than 10^3 Ohms resistance).\u003c\/p\u003e\n\u003cp\u003eStack Height: 8.5mm (3.5 rubber + 5mm insole) \u003cbr\u003eHeel to Toe Drop - 0\u003cbr\u003eUpper: 220g Polymesh\u003cbr\u003eWater Repellent: Minimal DWR on outer polymesh\u003cbr\u003eOutsole: High Abrasion, HIgh Grip Rubber\u003cbr\u003eWeight (pair): .925 lbs 0r 14.8 oz\u003cbr\u003eMachine Washable: Yes\u003cbr\u003eVegan: Yes\u003cbr\u003eGender: Unisex\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eiON SYNC® is \u003ca href=\"https:\/\/www.earthrunners.com\/pages\/ion-sync-patent\" title=\"iON patent\" rel=\"noopener\" target=\"_blank\"\u003ePatented Technology\u003c\/a\u003e\u003c\/p\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003eDoes one iON SYNC plug offer enough conductivity for therapeutic earthing? \u003c\/b\u003e\u003cbr\u003e\u003c\/strong\u003eOur medical grade iON SYNC composite material meets the standards for therapeutic earthing (less than 10^3 Ohms resistance). Any sweat that wicks into the insole expands the conductive surface to the greater portion of the sole, therefore enhancing electron transfer to the foot.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the Ion Sync® earthing plugs watertight?\u003c\/strong\u003e\u003cbr\u003eYes, all the earthing plugs are compression fit into the outsole making for a solid rubber seal. Also keep in mind the tabi shoes feature fabric between the toes which is the most likely area for moisture infiltration. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCan you feel the Ion Sync® earthing plugs underfoot?\u003c\/strong\u003e\u003cbr\u003eIf you feel for the Ion Sync® plugs you can feel them underfoot but after wearing the shoes for a while they go unnoticed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo iON SYNC® earthing plug contain latex?\u003cbr\u003e\u003c\/strong\u003eNo, our iON SYNC® earthing plugs are latex-free.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the Ion Sync® earthing plugs wear out?\u003c\/strong\u003e\u003cbr\u003eThe Ion Sync® earthing plugs are recessed and sit flush with the outsole tread at the midfoot so they are well protected. Their resilient rubber composition combined with their strategic positioning exposes them to low wear for max longevity. If they do happen to wear out, they can easily be replaced.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShoe Warranty Policy\u003c\/strong\u003e\u003cbr\u003eThe minimalist footwear companies we partner with and enhance with iON SYNC technology for reselling as earthing shoes comes with a 30-day retailer warranty. If your shoes fail due to defective materials or craftsmanship—such as a split sole or unraveled stitching—we’ll repair, replace, or refund them, at our discretion. This warranty begins from the date of purchase and applies only to products bought directly from us.\u003c\/p\u003e","brand":"TOLOS","offers":[{"title":"Black\/Tan \/ M5 \/ W6.5","offer_id":42215543930962,"sku":"TOL-BT-05","price":160.0,"currency_code":"USD","in_stock":false},{"title":"Black\/Tan \/ M5.5 \/ W7","offer_id":42215543963730,"sku":"TOL-BT-055","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Tan \/ M6 \/ W7.5","offer_id":42215543996498,"sku":"TOL-BT-06","price":160.0,"currency_code":"USD","in_stock":false},{"title":"Black\/Tan \/ M6.5 \/ W8","offer_id":42215544029266,"sku":"TOL-BT-065","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Tan \/ M7 \/ W8.5","offer_id":42215544062034,"sku":"TOL-BT-07","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Tan \/ M7.5 \/ W9","offer_id":42215544094802,"sku":"TOL-BT-075","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Tan \/ M8 \/ 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W11","offer_id":42215544815698,"sku":"TOL-WW-095","price":160.0,"currency_code":"USD","in_stock":false},{"title":"White\/White \/ M10 \/ W11.5","offer_id":42215544848466,"sku":"TOL-WW-10","price":160.0,"currency_code":"USD","in_stock":false},{"title":"White\/White \/ M10.5 \/ W12","offer_id":42215544881234,"sku":"TOL-WW-105","price":160.0,"currency_code":"USD","in_stock":false},{"title":"White\/White \/ M11 \/ W12.5","offer_id":42215544914002,"sku":"TOL-WW-11","price":160.0,"currency_code":"USD","in_stock":false},{"title":"White\/White \/ M11.5 \/ W13","offer_id":42215544946770,"sku":"TOL-WW-115","price":160.0,"currency_code":"USD","in_stock":false},{"title":"White\/White \/ M12 \/ W13.5","offer_id":42215544979538,"sku":"TOL-WW-12","price":160.0,"currency_code":"USD","in_stock":false},{"title":"White\/White \/ M12.5 \/ W14","offer_id":42215545012306,"sku":"TOL-WW-125","price":160.0,"currency_code":"USD","in_stock":false},{"title":"White\/White \/ M13 \/ W14.5","offer_id":42215545045074,"sku":"TOL-WW-13","price":160.0,"currency_code":"USD","in_stock":false},{"title":"White\/White \/ M14 \/ W15.5","offer_id":42215545077842,"sku":"TOL-WW-14","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M5 \/ W6.5","offer_id":42365184278610,"sku":"TOL-BB-05","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M5.5 \/ W7","offer_id":42365184311378,"sku":"TOL-BB-055","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M6 \/ W7.5","offer_id":42365184344146,"sku":"TOL-BB-06","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M6.5 \/ W8","offer_id":42365184376914,"sku":"TOL-BB-065","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M7 \/ W8.5","offer_id":42365184409682,"sku":"TOL-BB-07","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M7.5 \/ W9","offer_id":42365184442450,"sku":"TOL-BB-075","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M8 \/ W9.5","offer_id":42365184475218,"sku":"TOL-BB-08","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M8.5 \/ W10","offer_id":42365184507986,"sku":"TOL-BB-085","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M9 \/ W10.5","offer_id":42365184540754,"sku":"TOL-BB-09","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M9.5 \/ W11","offer_id":42365184573522,"sku":"TOL-BB-095","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M10 \/ W11.5","offer_id":42365184606290,"sku":"TOL-BB-10","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M10.5 \/ W12","offer_id":42365184639058,"sku":"TOL-BB-105","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M11 \/ W12.5","offer_id":42365184671826,"sku":"TOL-BB-11","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M11.5 \/ W13","offer_id":42365184704594,"sku":"TOL-BB-115","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M12 \/ W13.5","offer_id":42365184737362,"sku":"TOL-BB-12","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M12.5 \/ W14","offer_id":42365184770130,"sku":"TOL-BB-125","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M13 \/ W14.5","offer_id":42365184802898,"sku":"TOL-BB-13","price":160.0,"currency_code":"USD","in_stock":true},{"title":"Black\/Black \/ M14 \/ W15.5","offer_id":42365184835666,"sku":"TOL-BB-14","price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/BTtolossideandbottomDefault.jpg?v=1776380103"},{"product_id":"retolos-ion-sync-tolos-shoes","title":"ReTolos: iON SYNC® Tolos Shoes","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eReEarthRunners was created to bring new life to sandals that are in perfectly functional condition, whether they be discontinued models, lightly used returns, or feature a cosmetic factory defect. Learn more \u003ca href=\"https:\/\/www.earthrunners.com\/pages\/re-earthrunners\" title=\"reearthrunners\" rel=\"noopener\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eWe’re thrilled to announce the launch of our first barefoot sneaker: iON SYNC® Tolos Shoes.\u003c\/p\u003e\n\u003cp\u003eWe've equipped Tolos barefoot shoes with our groundbreaking iON SYNC® Earthing Plugs to offer a shoe designed for biohackers, nature lovers, and rewilding enthusiasts alike.\u003c\/p\u003e\n\u003cp\u003eOur iON SYNC® Earthing Plugs have been years in the making—a highly durable and conductive innovation that replicates the barefoot experience like never before. Integrated seamlessly into the soles of TOLOS, they provide an unmatched grounding experience to help balance your body’s natural energy.\u003c\/p\u003e\n\u003cp\u003eAvailable in white\/white and in black\/tan, iON SYNC® Tolos Shoes combine minimalist style with advanced grounding technology to keep you connected to the Earth with every step.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0708\/5713\/files\/conductive_network_infused3_0a113738-d225-40b2-97b0-06d64558da3a_600x600.jpg?v=1701843830\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eiON SYNC® is \u003ca href=\"https:\/\/www.earthrunners.com\/pages\/ion-sync-patent\" title=\"iON patent\" rel=\"noopener\" target=\"_blank\"\u003ePatented Technology\u003c\/a\u003e\u003c\/p\u003e\n\u003ch4\u003eSpecs\u003c\/h4\u003e\n\u003cp\u003eiON SYNC Archetype 2.0 voltmeter test video\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/hPW1CdBLlRY?si=0P08IUurigAwk7Jr?rel=0\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003eOur collaboration with a renowned compounding company, known for its work with top technology firms such as Apple, Tesla, and SpaceX, has resulted in the development of a unique iON SYNC composite material. This material blends the robust properties of shoe outsole rubber with the required conductivity to meet the standards for therapeutic earthing (less than 10^3 Ohms resistance).\u003c\/p\u003e\n\u003cp\u003eStack Height: 8.5mm (3.5 rubber + 5mm insole) \u003cbr\u003eHeel to Toe Drop - 0\u003cbr\u003eUpper: 220g Polymesh\u003cbr\u003eWater Repellent: Minimal DWR on outer polymesh\u003cbr\u003eOutsole: High Abrasion, HIgh Grip Rubber\u003cbr\u003eWeight (pair): .925 lbs 0r 14.8 oz\u003cbr\u003eMachine Washable: Yes\u003cbr\u003eVegan: Yes\u003cbr\u003eGender: Unisex\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eiON SYNC® is \u003ca href=\"https:\/\/www.earthrunners.com\/pages\/ion-sync-patent\" title=\"iON patent\" rel=\"noopener\" target=\"_blank\"\u003ePatented Technology\u003c\/a\u003e\u003c\/p\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cb\u003eDoes one iON SYNC plug offer enough conductivity for therapeutic earthing? \u003c\/b\u003e\u003cbr\u003e\u003c\/strong\u003eOur medical grade iON SYNC composite material meets the standards for therapeutic earthing (less than 10^3 Ohms resistance). Any sweat that wicks into the insole expands the conductive surface to the greater portion of the sole, therefore enhancing electron transfer to the foot.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the Ion Sync® earthing plugs watertight?\u003c\/strong\u003e\u003cbr\u003eYes, all the earthing plugs are compression fit into the outsole making for a solid rubber seal. Also keep in mind the tabi shoes feature fabric between the toes which is the most likely area for moisture infiltration. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCan you feel the Ion Sync® earthing plugs underfoot?\u003c\/strong\u003e\u003cbr\u003eIf you feel for the Ion Sync® plugs you can feel them underfoot but after wearing the shoes for a while they go unnoticed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo iON SYNC® earthing plug contain latex?\u003cbr\u003e\u003c\/strong\u003eNo, our iON SYNC® earthing plugs are latex-free.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the Ion Sync® earthing plugs wear out?\u003c\/strong\u003e\u003cbr\u003eThe Ion Sync® earthing plugs are recessed and sit flush with the outsole tread at the midfoot so they are well protected. Their resilient rubber composition combined with their strategic positioning exposes them to low wear for max longevity. If they do happen to wear out, they can easily be replaced.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShoe Warranty Policy\u003c\/strong\u003e\u003cbr\u003eThe minimalist footwear companies we partner with and enhance with iON SYNC technology for reselling as earthing shoes comes with a 30-day retailer warranty. If your shoes fail due to defective materials or craftsmanship—such as a split sole or unraveled stitching—we’ll repair, replace, or refund them, at our discretion. This warranty begins from the date of purchase and applies only to products bought directly from us.\u003c\/p\u003e","brand":"ReEarthRunners","offers":[{"title":"M5 \/ W6.5 \/ Black\/Tan","offer_id":42338724806738,"sku":"RE-TOLOS-BLK","price":112.0,"currency_code":"USD","in_stock":false},{"title":"M5 \/ W6.5 \/ White\/White","offer_id":42338725396562,"sku":"RE-TOLOS-WH","price":112.0,"currency_code":"USD","in_stock":true},{"title":"M5 \/ W6.5 \/ Black\/Black","offer_id":42368022675538,"sku":"RE-TOLOS-BB","price":112.0,"currency_code":"USD","in_stock":false},{"title":"M5.5 \/ W7 \/ Black\/Tan","offer_id":42338724839506,"sku":"RE-TOLOS-BLK","price":112.0,"currency_code":"USD","in_stock":false},{"title":"M5.5 \/ W7 \/ White\/White","offer_id":42338725429330,"sku":"RE-TOLOS-WH","price":112.0,"currency_code":"USD","in_stock":false},{"title":"M5.5 \/ W7 \/ Black\/Black","offer_id":42368022708306,"sku":"RE-TOLOS-BB","price":112.0,"currency_code":"USD","in_stock":false},{"title":"M6 \/ W7.5 \/ 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