Darn Tough Men's Merino Wool Micro Crew Sock Cushion - 3 Pack 67% Merino Wool, 29% Nylon, 4% Lycra Spandex 3 Pair Included This is a go-to sock for hikers seeking comfort and performance Cushioning along the bottom of the foot provide the perfect amount of support while a smooth, performance fit assures theres no slipping, no bunching, and no blisters Fine gauge knitting makes this Merino Wool sock a true workhorse thats supremely comfortable, breathable and fast drying Cool in the summer, warm in the winter and naturally antimicrobial so it repels bacteria and odor