TA4 Thin Air™ Performance Sock No Show Tab Waterproof Everyday runs

Everyday runs

Upper: Birko-Flor®

adjusts from 14" to 21"

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

TA4 Thin Air™ Performance Sock No Show Tab Waterproof Everyday runsBreakthrough 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