Bond with nature in absolute comfort in these Dahlgren socks and never to worry about your feet again. Features a comfortable blend of Alpaca and merino wool in the toe and heel insulate in cool weather with out overheating in warmer climates. Unique Dri-Stride Moisture Transfer Zone, a two-step zone construction system. Step 1: ABSORB . Patented zone construction uses natural yarns in the toe and heel to absorb moisture. Step 2: TRANSFER . DriSpun Hydrophobic Yarns in the arch, instep and leg transfer moisture out of the toe and heel zones, keeping the foot drier and comfortable. Also features Wicking Rings and Wicking Channels to improve moisture transfer by 40% to keep your feet dry all day long. Lightly Cushioned Blister-Free Absorption Zones at the toes and heel for a comfort feel all its own. Wash in cold water inside out, tumble dry. Consists of: Toe, Heel and Rings: 45% Merino wool, 45% Alpaca, 10% nylon. Arch/Instep: 75% DriSpun Hydrophobic Yarns, 25% nylon. Leg: 90% DriSpun Hydrophobic Yarns, 10% nylon. Available in a 2-pair pack.