A diamond design, supportive arch brace, and half cushion sole makes these crew socks at home in the boardroom or on the boardwalk. Diamond Jim had his jewels, but he never enjoyed the luxurious comfort of these SmartWool socks!. . . Blend of merino wool, nylon, and elastaneastic. SmartWool is naturally breathable, does not itch, and manages moisture, keeping your feet dry and comfortable. Supportive arch brace for fit and comfort. Half cushion sole for comfort and enhanced wicking performance. Smooth toe seam. Naturally antimicrobial to control odor. Machine washable inside out and dryer friendly.