OS1ST TA4 Thin Air No Show Grey Size:XL Big energy return for an

Big energy return for an explosive feeling

The PowerStep® Pinnacle High full length insoles with built-in high arch support and two layers of plush cushioning are the perfect balance of comfort and support

compression-molded EVA midsole offers long-lasting support and shock absorption

Upper is constructed of genuine leather

lightweight canvas

OS1ST TA4 Thin Air No Show Grey Size:XL Big energy return for anOS1ST TA4 Thin Air No Show Grey 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 profile