• Constructed with an inner lining made of CoolMax and a resistant outer shell of Lycra.
• Features Injinji's patented 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.
• 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 Ultra Run Sock Specs

Sock Fibers:

70% - Coolmax
25% - Nylon
5% - Lycra