WARM INSULATION: Experience durability at its peak with the Smartwool Men’s Diamond Jim Crew Socks. These socks are built for performance in the highest degree, making them ready for any adventure on your list. COMFORTABLE FIT: The Men’s Diamond Jim Crew Socks feature premium ribbed construction and materials along with shred shield technology for a comfortable, secure overall fit. DURABLE YET BREATHABLE: This sock is designed with a supportive arch base for added durability and comfortable, all-day wear. MEDIUM CUSHION: The medium cushioning on the Men’s Diamond Jim Crew Socks allows you to wear these performance socks on various trails and road terrains without discomfort. Whether you are biking, running, skiing, or hiking, these socks will provide you with padded comfort during any season. CARE INSTRUCTIONS: Comprised of 58% Merino Wool, 40% Nylon, and 2% Elastane, the Men’s Diamond Jim Crew Socks should be machine washed inside out in warm water and tumble dried on low. These socks should not be bleached, ironed, or dry cleaned.