OS1st Unisex TA4 Thin Air No Show Socks Yellow Part of our Birkenstock Core

Part of our Birkenstock Core Collection

Nonmarking rubber or gum rubber outsole with ocean current design

Anatomically shaped BIRKENSTOCK footbed made from EVA

• Durable synthetic and lightweight

A highly comfortable

OS1st Unisex TA4 Thin Air No Show Socks Yellow Part of our Birkenstock CoreOS1st 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 positioned lift bars, maximizes air flow achieving a cooling sensation to your feet. Targeted