Fully cushioned to keep you warm and protected from the elements, these socks are reinforced throughout the entire soles to extend their lifespan and to add protection in high-abrasion areas. Ankle vents reduce bulk so you don’t have to sacrifice comfort for warmth. They regulate your temperature by moving moisture away from your skin to keep your feet drier and warmer. Spandex throughout provides a comfort fit, and keeps them up where they belong. Odor protection. Flat toe seams. Heather black is 63% acrylic, 17% wool, 13% nylon, 6% polyester, 1% Lycra®. Brown is 61% acrylic, 16% wool, 14% polyester, 8% nylon, 1% Lycra. Machine washable. Made in USA. Sizes: L, XL. Colors: Brown, Heather Black (L only).