TA4 Thin Air™ Performance Sock No Show Tab Waterproof Width: Medium

Width: Medium

This back to basics crew sock is made from classic Cashmerino wool and offered in colors like Violet

Fits in any shoe or boot and over custom orthotics

The spike configuration is designed specifically to provide a powerful grip for 400 - 1600m races

• High density cushioning provides cushioned comfort without the bulk

TA4 Thin Air™ Performance Sock No Show Tab Waterproof Width: MediumBreakthrough product specifically designed for comfort, fit, protection and breathability. OS1st TA4 Thin AirTM Performance Socks feature never before applied technology to keep your feet cool and protected during any activity. Created using 200n medical grade machinery and materials we are able to build in comfort, durability and blister protection, yet with the thinnest upper foot profile ever made. The "Thin SkinTM" construction with uniquely