70% COOLMAX? Polyester, 17% Nylon, 8% Polyester, 5% LYCRA? Spandex Imported * MOISTURE WICKING TECHNOLOGY: COOLMAX Extreme Technology effectively moves perspiration away and keep dry.These socks will keep you dry and supported for hours while maintaining a low profile. * COMPRESSION SUPPORT: LYCRA Elastic band wrapped all of the foot and the calf,Our high quality compression socks make a great workout gear for work day and running, cycling, basketball, football, crossfit, weight lifting many other sports. Athletic Support Mild Pressure Compression (15-18mmHg) ergonomically conforms to your foot for a comfort fit around nerves and muscles to increase circulation and reduce inflammation. * Reinforced heel and toe,Both the heel and the toe of these socks have been reinforced with thick, durable fibers to provide long lasting durability.Seamless toe closure. * Falt light and mesh top of foot keep your feet cool and dry, provides comfortable. * NATURAL DRYLING, Machine wash warm with like colors only, No bleach, iron or dry clean. This pack of 5 pairs .L: US men shoe 9-12.5; M: US men’s shoe 4-8.5, women’s shoe 7-10.5, 5 pairs/pack.