Fabric: 57% combed cotton, 22% polyseter, 17% nylon, 4% elastane (may vary with color), Recommended: Machine Wash in 40 C / 104 F. Avoid Bleaching or Ironing the socks. Socks will last longer if you keep them out of the dryer., Targeted Cushioning for added comfort where you need it most., Infiknit technology never rips, never tears. Made for good. Every drawer needs a reliable, every day sock and the Stance Casual Icon ST 200 Crew Socks are as steady as they come. Expertly crafted in lush combed cotton and now available in Stance's ultra-durable Infiknit technology, think of this crew sock as essential for all your daily endeavors.