Built for Long Days in Boots Designed for hiking, work, duty and everyday outdoor use, the TWS Merino Wool Boot Socks combine natural merino performance with reinforced durability and all-day cushioning. Made from a 58% nylon / 37% merino wool / 5% Lycra blend, they balance the temperature-regulating and moisture-managing properties of merino wool with the abrasion resistance and stretch needed for demanding boot wear. Why Merino Wool Helps regulate foot temperature in changing conditions Naturally helps control odor Moves moisture away from the skin Breathable and comfortable for extended wear Built for Boots Cushioned terry footbed for added comfort Reinforced high-wear areas for durability Arch support band for a secure fit Stay-put cuff helps reduce slipping and bunching Mid-calf height works with hiking, work and tactical boots Materials:58% Nylon / 37% Merino Wool / 5% Lycra