iON SYNC Archetype 2.0 voltmeter test video

Our 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).

Stack Height: 8.5mm (3.5 rubber + 5mm insole)
Heel to Toe Drop - 0
Upper: 220g Polymesh
Water Repellent: Minimal DWR on outer polymesh
Outsole: High Abrasion, HIgh Grip Rubber
Weight (pair): .925 lbs 0r 14.8 oz
Machine Washable: Yes
Vegan: Yes
Gender: Unisex

iON SYNC® is Patented Technology

Does one iON SYNC plug offer enough conductivity for therapeutic earthing?
Our 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.

Are the Ion Sync® earthing plugs watertight?
Yes, 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.

Can you feel the Ion Sync® earthing plugs underfoot?
If you feel for the Ion Sync® plugs you can feel them underfoot but after wearing the shoes for a while they go unnoticed.

Do iON SYNC® earthing plug contain latex?
No, our iON SYNC® earthing plugs are latex-free.

Will the Ion Sync® earthing plugs wear out?
The 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.

Shoe Warranty Policy
The 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.

Our conductive laces™ feature two parallel stitches of conductive thread up the entire length and are secured to the bottom of the sandal with a copper plug to keep you grounded. Our laces are extremely adjustable allowing you to independently alter the thong, heel and ankle strap to accommodate your unique fit preferences. After your laces are properly adjusted, putting on your sandals is simple as slipping the heel strap on and off!

Want to confirm your best fit? With our downloadable sizing templates, you can print & 'try on’ your sandals before ordering! Click here to see our sizing chart with international size conversions, sandal lengths in both inches and centimeters, as well as photos of what the best fit looks like.

Order Processing: All sandals are handcrafted in our California workshop. Orders ship via USPS within 3-7 business days.

• Orders placed by Monday 7am Pacific ship Thursday. 
• Orders placed by Thursday 7am Pacific ship Monday. 
• Changes to orders must be requested within 24 hours of placement.

Domestic Shipping:

• First Class Mail: $, 3-5 business days delivery after shipping. 
• Priority Mail (Flat Rate): $$, 2-3 business days delivery after shipping. 
• Priority Mail Express (Flat Rate): $$$, 1-2 business days delivery after shipping. 

International Shipping:

• ePacket Duties and Taxes Paid: $, 7 to 9 business days delivery after shipping. 
• Priority Duties and Taxes Paid: $, 6 to 9 business days delivery after shipping. 
• Expedited Duties and Taxes Paid: $$, 5 to 7 business days delivery after shipping. 

Add 3-4 business days for the following countries: Argentina, Mexico, Vietnam, Switzerland, Israel, Portugal, Ireland and Philippines

Shipping times are estimates and not guarantees.

Re-EarthRunners is a mission from the Earth Runners team to bring second life to sandals which have been renewed by our highly skilled team in order to #Rewild more soles and help connect more people to nature. ReEarthRunners 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.

All Re-EarthRunners products (products beginning with "Re-") are non-refundable (no returns or exchanges). Please contact us if we made an error with your order.

Order Processing: All sandals are handcrafted in our California workshop. Orders ship via USPS within 3-7 business days.

• Orders placed by Monday 7am Pacific ship Thursday. 
• Orders placed by Thursday 7am Pacific ship Monday. 
• Changes to orders must be requested within 24 hours of placement.

Domestic Shipping:

• First Class Mail: $, 3-5 business days delivery after shipping. 
• Priority Mail (Flat Rate): $$, 2-3 business days delivery after shipping. 
• Priority Mail Express (Flat Rate): $$$, 1-2 business days delivery after shipping. 

International Shipping:

• ePacket Duties and Taxes Paid: $, 7 to 9 business days delivery after shipping. 
• Priority Duties and Taxes Paid: $, 6 to 9 business days delivery after shipping. 
• Expedited Duties and Taxes Paid: $$, 5 to 7 business days delivery after shipping. 

Add 3-4 business days for the following countries: Argentina, Mexico, Vietnam, Switzerland, Israel, Portugal, Ireland and Philippines

Shipping times are estimates and not guarantees.