This truly versatile base layer liner treats high-grade polypropylene with Alphasan® technology (natural, silver based antimicrobial treatment) to give you an odoor free, blister resistant sock liner, minus the weight and bulk. They wick, breathe, reduce friction... and the synthetic yarn will simply not wear through. Made in the USA.

Content: 77% polypropylene, 17% nylon, 3% elastic, 3% lycra

Mens shoe sizes: Medium (5-8), Large (9-12), X-Large (13-15)

Womens shoe sizes: Small (4-7), Medium (8-11)