Pure Athlete Wool Hiking Socks - Moisture Wicking Outdoor Socks, Trail Socks, Trekking Crew Sock for Men and Women 27% nylon Padded Heel and Toe: To ensure extra comfort and prevent blisters, the socks have a padded heel and toe. Moisture Wicking: The military socks are made of moisture wicking material that wicks moisture away from the skin to the outside of the sock where it can evaporate. Breathable: A breathable fabric prevents feet from becoming too warm. Keeps Feet Warm: Feet stay warm thanks to the wool and other special yarns in the socks. 100% Satisfaction Guarantee: We guarantee these are the most comfortable socks you will ever wear. If not fully satisfied, simply return the socks within 30 days for a full refund.