Our Deep Toe Capped Men’s Wool Sock has a medium thickness, making it great for all seasons. The pile cushion weave extends past the top of the toe to increase comfort, while the reinforced nylon heel provides extra durability. 51% Wool, 34% Acrylic, 13% Nylon, 2% Spandex Made in USA Medium US 6-9 Large US 9 - 12