The Heat Holders 1 Pack Original Thermal Crew Sock in Charcoal / Light Gray is a high-quality pair of men's socks designed for maximum comfort. Made from a blend of polyester, nylon, acrylic, and elastane, these mid-calf length socks are perfect for casual wear in all seasons. With a solid black color and full toe style, these crew socks by Heat Holders are ideal for activities like walking, hiking, running, and jogging. The thermal features of these socks provide added warmth during winter, making them a practical and stylish choice for any man's wardrobe.