Size Medium fits U.S. Shoe Sizes: Men's 8-10.5, Women's 9-11.5
Proven in the simplest and most extreme conditions, the Performance series tetratsok is becoming the choice interface for amateur and professional athletes alike. Engineered with AIS: technology and constructed with a wicking fiber made of CoolMax® and a resistant outer shell of durable nylon, the Performance tetratsok protects, prevents and out performs any ordinary tube closed sport sock.
- Engineered w/ AIS technology and constructed with:
- 70% CoolMax®
- 25% Nylon
- 5% Lycra®
CoolMax® in an enhanced polyester fiber and is the industry leader when it comes to moisture management. CoolMax® fabric is specifically designed to provide not only superior moisture management but also to enhance the wearer's comfort. All benefits of CoolMax® are built into the fiber requiring no chemical treatments like many other wicking fabrics.