Whether you re trudging through the city streets or climbing a mediocre hill with your special someone, these Dahlgren socks are a perfect pick. Features a ribbed collar for all day comfort. 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 that 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: 63% Merino wool, 27% Alpaca, 10% nylon. Arch/Instep: 75% DriSpun Hydrophobic Yarns, 25% nylon. Leg: 90% DriSpun Hydrophobic Yarns, 10% nylon. Available in a 3-pair pack.