Darn Tough construction and Scent-Lok technology create the ultimate hunting sock. Our Scent-Lok socks are knit with odor inhibiting, fine gauge, shrink treated, Merino Wool. Their 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. Their 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. Merino Wool - Darn Tough custom count, shrink treated Merino wool enhances the comfort and durability that outdoor enthusiasts have come to expect from this fiber. Scent-Lok - An odor-inhibiting which helps prevent animals from detecting you. True Seamless - Using the latest generation of Italian knitting machines, Darn Tough are able to knit ultra-light yet extremely dense socks with an undetectable toe seam, here in Vermont. The result is miles and miles (and miles) of blister-free bliss. Feel the difference of feeling nothing at all!