New Balance Quarter X-wide High Density Socks acrylic 86% Acrylic, 12% Polyester, 1% Nylon, 1% Spandex High Density Shock Cushioning Soft Acrylic and Comfort Toe Machine was warm with like colors. Only non-chlorine bleach when needed. Tumble dry low. Do not iron. Do not dry clean. Do not use fabric softener or dryer sheets. China