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 positioned lift-bars, maximizes air-flow achieving a cooling sensation to your feet.

Targeted Conditions 

• Blister protection

• Sore/achy feet

• Hyper-sensitivity

• Over heating

Performance Features

• Max air flow

• Skin Thin design

• Heat Release

• Anti-bacterial

• Ultra light

• Wear alone or paired with TA6 Thin Air Calf Sleeves