The core of the roll consists of a flexible plastic axle

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it distributes your weight evenly

Both copper inserts and the conductive straps ground you by allowing electron transfer from the earth – directly to your body

Injinji RUN Lightweight (Ultra-Thin) Tå-sokker Sort (Mini Crew) Size:Medium The core of the rollThis durable, ultra thin sock also features a lightweight and breathable mesh upper for maximum ventilation. The unparalleled instep protection and super comfortable cuff ensure you the best possible fit and stability in your shoes. This sock is ideal for those who want a really good feeling of grounding but do not like the sockless, sweaty sensation. The patented seamless design gives you: Anti friction fibers that help you avoid blisters. Individual