6 Pairs: Bolter Athletic Hiking Quarter Crew Socks Low Cut Style # 3323 (Medium, Black) 27% nylon 1/4 Crew Height (Low or "Lo Cut") 70% Cool Wicking Poly, 27% Nylon, 3% Spandex Top Mesh Knitted Vents Thicker Bottom Terry Weave (For a little cushioning) Great Athletic Sock For the Gym or Running Around All Day