Bridgedale Men's Coolfusion Run Na-Kd Socks 53% Nylon Polyamide, 42% Coolmax Polyester, 5% Lycra Elastane Imported Ultra Lightweight Highly versatile, from running and aerobic activities to everyday use with your trainers Coolmax technology for cooling a fast wicking Lo-Cut length Stay put SlingShot heel fit 1 Year Guarantee