TCK Player Id Black/Electric Green Custom Number Crew Sock SINGLE SOCK, BUY ONE FOR EACH FOOT ACCURATE SIZING: Shoe Size: Small Youth 12-5 or Womens 4-7, Medium - Womens 7-10 or Mens 6-9, Large - Womens 10-13 or Mens 9-12, X-Large Womens 13+ or Mens 12+ Crew Length, Blister Control Arch Compression and Heel/Toe Construction Moisture/Odor Control Antimicrobial, Ergonomic Cushioning