Included in this bundle:
1. Circadian Sandals
The Circadian will keep you secure and in tune with the earth’s natural rhythms—at every step. The minimalist nature of Earth Runners sandals offers a gentle reminder to yourself–and others–of the oneness you share with the Earth.
The Performance laces featured on the Circadian Adventure sandals provide ultimate security and longevity on all of your adventures.
2. iON SYNC® DIY Earthing Shoe Kit
When installed through the soles of shoes, iON SYNC® (Patented) plugs offer users an unparalleled grounding experience that replicates the benefits of being barefoot.
These plugs are offered in three sizes, suitable for grounding shoes with thicknesses ranging from 4-15mm (3/16 - 5/8").
Please refer to this page to find the right size for your shoes, and find written -and- video instructions below.
3. Biofoot Sticker
The IonSync BioFoot illustrates our biological connection to the earth– the soles of our feet.
- 1.5" x 3.25" Biofoot Sticker
- Perfect for laptops, cars, water bottles, & more!
We proudly donate 1% of all sales to True Messages, a non-profit focused on honoring the running heritage of the Tarahumara culture and supporting the youth of the community.
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: $$, 5 to 7 business days delivery after shipping.
Add 3-4 business days for the following countries: Argentina, Mexico, Vietnam, Switzerland, Israel, Portugal, Ireland and Philippines
Shipping times are estimates and not guarantees.
Order Processing: All sandals are handcrafted in our California workshop. Orders ship via USPS within 3-7 business days.
- Orders placed by Monday 7am Pacific ship Thursday.
- Orders placed by Thursday 7am Pacific ship Monday.
- Changes to orders must be requested within 24 hours of placement.
Domestic Shipping:
- First Class Mail: $, 3-5 business days delivery after shipping.
- Priority Mail (Flat Rate): $$, 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.
Circadian Earthing Package
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!

Click here to see how the template should fit
Don't have access to a printer? >> Click here <<
| Children's Sandals Size | SANDAL LENGTH | ||
|---|---|---|---|
| K12 | 19 cm | 7-1/2 inch | |
| K13 | 19.8 cm | 7-13/16 inch | |
| 1 | 20.6 cm | 8-1/8 inch | |
| 2 | 21.5 cm | 8-1/2 inch | |
| 3 | 22.4 cm | 8-13/16 inch | |

Print & 'try on the sandals' before ordering!
-
1 - Click the corresponding size's Printer Icon
- 2 - Download the PDF to your computer
- 3 - Print the size template in "actual size"
-
4 - Compare with your foot & confirm your size
- 3.1 - When printing our templates, make sure the "scale" in the Print Window is set to 100% or actual size to ensure the size is accurate.
- 3.2 - If using the Chrome browser, make sure the "fit to page" checkbox is unchecked.
- 3.3 - After you print out the template, double check the scale of the template and compare with a ruler.
-
4.1 - On a hard, flat surface, place the toe hole mark between your big & second toe.
- 4.2 - Toes should be close to the edge, but not hang over. Want our opinion? Send a photo of your foot on the template via our contact page.
**Reminder: The most common mistake is not having the template accurately printed, so double check with a ruler.
Doesn't Fit?
If you're not satisfied with how your sandals fit, return them within 30 days, as long as they're unworn, unwashed and unaltered.
Here we have provided some approximations of how your foot on the template may translate to wearing the sandal on your foot. Note: People have a tendency to want to order sandals with extra space. We actually recommend choosing the size with as little extra space between your toes/heel and the edges of the sandal. A close fit is ideal, reducing sloppy strides and tripping hazard.
| This is a good fit. | |
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| This is a good fit. | |
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| This is slightly too big; we would recommend a half size smaller. | |
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| This is a good fit. | |
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| This is much too large. We would recommend 1-1.5 sizes smaller. | |
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| This is too small. While we like a close fit, we don't want your toes hanging off the sandal! We would recommend a size up. | |
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| Though some people are happy with this fit, we would recommend a half size bigger. | |
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Shoes are one of the most intimate articles of clothing we use on a daily basis and we understand your dilemma in trying to order the perfect size. We have heard the questions asked in every combination: What size should I get? How should the sandals fit? Does this size fit me? Is this size too big? Is this the right size? What do you think of this size on me? Is this how it is supposed to fit? Which size looks best?
Included in this bundle:
1. Circadian Sandals
The Circadian will keep you secure and in tune with the earth’s natural rhythms—at every step. The minimalist nature of Earth Runners sandals offers a gentle reminder to yourself–and others–of the oneness you share with the Earth.
The Performance laces featured on the Circadian Adventure sandals provide ultimate security and longevity on all of your adventures.
2. iON SYNC® DIY Earthing Shoe Kit
When installed through the soles of shoes, iON SYNC® (Patented) plugs offer users an unparalleled grounding experience that replicates the benefits of being barefoot.
These plugs are offered in three sizes, suitable for grounding shoes with thicknesses ranging from 4-15mm (3/16 - 5/8").
Please refer to this page to find the right size for your shoes, and find written -and- video instructions below.
3. Biofoot Sticker
The IonSync BioFoot illustrates our biological connection to the earth– the soles of our feet.
- 1.5" x 3.25" Biofoot Sticker
- Perfect for laptops, cars, water bottles, & more!
We proudly donate 1% of all sales to True Messages, a non-profit focused on honoring the running heritage of the Tarahumara culture and supporting the youth of the community.
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: $$, 5 to 7 business days delivery after shipping.
Add 3-4 business days for the following countries: Argentina, Mexico, Vietnam, Switzerland, Israel, Portugal, Ireland and Philippines
Shipping times are estimates and not guarantees.
Order Processing: All sandals are handcrafted in our California workshop. Orders ship via USPS within 3-7 business days.
- Orders placed by Monday 7am Pacific ship Thursday.
- Orders placed by Thursday 7am Pacific ship Monday.
- Changes to orders must be requested within 24 hours of placement.
Domestic Shipping:
- First Class Mail: $, 3-5 business days delivery after shipping.
- Priority Mail (Flat Rate): $$, 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.














