Stance Men's Streaker Fusion Run Compression Crew Sock, Multi, Sock Size:10-13/Shoe Size: 6-12 47% Nylon, 44% Polyester, 5% Cotton, 4% Spandex Imported Machine Wash Moisture-wicking fibers and graduated compression Air channel cushioning with anatomical fit Anatomical venting thermos regulation Reinforced toe and heel for maximum durability Fit no. 448 the compression crew, fine knit, medium cushion, active secure support