Sockwell Men's Quest Hiker Micro Socks 48% Lambswool, 32% Stretch Nylon, 16% Alpaca, 4% Spandex Made in US Seamless Toe Closure, no irritating toe seam Reinforced Toe and Heel area offers Long Term Durability Full Instep and Ankle Support with Extended Arch Support adds Comfort and Helps Keeps the Sock in Place Medium Cushion sole and Extended Wrapped Cushion/Blister Barrier Non-Binding Welted Top for Comfort