TA4 Thin Air™ Performance Sock No Show Tab Waterproof The spike configuration is designed

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

Revised material toe tip for toe drag

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

Everyday runs

Width: Medium

TA4 Thin Air™ Performance Sock No Show Tab Waterproof The spike configuration is designedBreakthrough 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