OS1ST TA4 Thin Air No Show Steel Blue Os1st Womens • Bellows tongue keeps out

• Bellows tongue keeps out debris

featuring our same custom adjustable strap system

Left and right asymmetrical steel toe

With adjustable straps and a magical cork footbed that conforms to the shape of your foot

OS1ST TA4 Thin Air No Show Steel Blue Os1st Womens • Bellows tongue keeps outOS1ST TA4 Thin Air No Show Steel Blue comfortable breathable sock Breakthrough 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