PRODUCT DESCRIPTION: The IncrediwearSports Socks Thin relieve aches and fatigue during activities such as mountain biking, exercising, hiking, and other activities. The Sports Socks Thin are moisture wicking, lightweight, and secure fitting to provide comfort throughout the day. SIZING:Based on shoe size. (All socks are final sale.) S M L MEN 4 - 6.5 MEN 7 - 9.5 MEN 10 - 12.5 WOMEN 5 - 7.5 WOMEN 8 - 10.5 WOMEN 11 - 13 EUR 35 - 38 EUR 39 - 42 EUR 43 - 46 TECHNOLOGY AND SPECS: Incrediwear's signature fabric blend is embedded with semiconductor elements to provide effortless comfort and exceptional durability Effortless comfort Wash and Care Instructions: The Incrediwear Sports Socks Thinis easy to clean. Wash warm or cold. Tumble dry low. Do not bleach, iron or dry clean.