Sock Guy Cow Made with 75% Ultra-wicking Micro Denier Acrylic, 15% Nylon, and 10% Spandex for exceptional comfort and strength. ALL Sock Guy socks feature a "Stretch-to-Fit" sizing system and an "Easy-fit" cuff for every type of foot. Item Specifications Color Cows Season Warm Weather Material75% acrylic, 15% nylon, 10% Spandex Size Small / Medium (6-10)Size Chart SIZEUS MENSUS WOMENSEURSmall / Medium5 - 96 - 1037 - 42Large / Extra Large9 - 1310 - 1443 - 48 | Sock Guy | Cow Women's Cycling Socks | Size Small/medium In White | Nylon