| Injinji Sock Sizes | | Sock Size | US Men's Shoe Size | US Women's Shoe Size | | S | 5-7.5 | 6-8.5 | | M | 8-10.5 | 9-11.5 | | L | 11-13 | 12+ | | XL | 13.5+ | N/A |
Sock Geek Says:
Proven in the simplest and most extreme conditions, the Performance Series Injinji Toesock is becoming the choice interface for amateur and professional athletes alike. Constructed with an inner lining made of CoolMax and a resistant outer shell of Lycra. Features Injinji's patented AIS technology. Anatomical Interface System (AIS) that is engineered to separate your toes with a thin,  anti-friction membrane that is both lightweight and breathable. Seamless in construction, the Toesock forms to every contour of your foot. This allows for true restriction free movement from your heel to five toes, encourages healthy circulation, and eliminates skin on skin contact between your toes to prevent blisters from developing. A little funky at first but after a very brief adjustment period you'll love the comfort and performance the Injinji Toesock delivers. Injinji Crew Sock Specs Sock Fibers:70% - Coolmax
25% - Nylon
5% - Lycra
Note: For the most accurate and comfortable fit, size your toe socks closest to your dress shoe size or actual foot size. | 
