Heavier- weight sock great for cold weather hiking or longer wilderness trekking. Crew. Elastic 3x1 terry rib top. Fully Thermalined cushioned leg. Wick Dry Health System keeps feet dry and comfortable. X-tra Cushion foot with Extra Wear Zone sole. High-Wick acrylic for extra shock absorption and cushion. Worsted wool-thermostatic insulator against heat and cold. Linear looped toe-flatter seam. Content: 60% Duraspun Acrylic, 20% Worsted Wool, 20% Stretch Nylon, except 2% Lycra Spandex added to top. Note: Size Small only available in Grey/Black & Khaki/Navy. Size Small & X-Large are not available in Natural/Forest Tweed |