SockGuy Crew 6in Mudflap Pink Cycling/Running Socks (Mudflap Pink - L/XL) 10% spandex 75% moisture wicking micro denier acrylic, 15% nylon, 10% spandex for exceptional comfort Mesh upper above your foot allows maximum ventilation and breathability Easy fit cuff features a non-binding cuff Shrink-resistant and itch-free Stretch -to-fit, 2 size system