HDP CEP Men's Progressive+ Run Merino Socks 69% Polyamid, 17% Merino Wool, 14% Elastan Imported COMPRESSION: Progressive 20-30mmHg graduated + consistent compression contains the calf muscle and increases circulation, which helps prevent shin splints, delayed onset muscle soreness, and common overuse injuries. MERINO WOOL: The perfect combination of merino wool and synthetic fabrics keeps your feet at a comfortable temperature and remain dry due to effective moisture-wicking. Cold or hot temperatures, these provide both insulation and cooling. CUSHION: With cushioning right where you need it at the ankle and metatarsal head, youll experience superior comfort and fewer blisters even when wearing the tightest boots. DESIGN: The toe-box elasticity ensure a perfect fit and a reassuring feel. The socks wrap snugly around the feet creating a second-skin, providing you with an unbelievable boot fit, and one-of-a kind wearing comfort. STYLE: With stylish colors and a unique fiber combination to keep your feet both cool and insulated, youll be able to enjoy all your outdoor adventures knowing youre supporting one of your most important assets: your feet.