STAY COOL, STAY DRY IN THE TERRAMER PERFORMANCE COOL-DRY PRO HIKER CREW SOCK.Keep your feet happy in the Terramer Performance Cool-Dry Pro Hiker Crew Socks. Made of a wool-spandex blend for all day comfort. Reinforced on the toes and heels to last hike after hike. FEATURES 46% Polyester/25% Acrylic/15% Wool/12% Nylon/2% Rubber Soft wool blend with Spandex provides a custom, comfortable feel, shock absorption, and odor resistance Reinforced toes and heels for extra strength in wear and tear spots