Darn Tough construction and Scent-Lok technology create the ultimate hunting sock. Scent-Lok socks are knit with odor inhibiting, fine gauge, shrink treated, Merino Wool. These hunting socks help socks conceal human scent while delivering itch free and breathable all-weather comfort in the most extreme conditions. More stitches per inch ensure a foot hugging fit. Less bulk. More comfort. Zero Friction Heel eliminates blisters. Cushioning around the entire foot provides additional comfort and support. No slipping, No bunching. Still made in Vermont. Guaranteed for life.