'TeeHee Viscose from Bamboo Hiker Crew 4-Pair Socks Durable Bamboo fiber Sports Construction, Cushioned to prevent Blisters. Quality Guarantee: if you have any problems, please contact us and we will do our best and work with you so that you can leave satisfied! A multi-pack of hiker crew socks are perfect to give as gifts. A strategically placed elastic to create grip for a superior fit, comfort and performance. Sizing Guidelines: 10-13 for Men, Men's shoe sizes 8-12 1/2 and 9-11 for Women, Women's shoe sizes 6 - 9