Custom Diamond Builder Baseball Socks. Customize with your own team colors and logo to make the perfect Baseball Socks or Softball Socks. High performance athletic socks for all team sports and elite athletes. Shoe Size: Small - Youth 12-5 Womens 4-7, Medium - Womens 7-10 Mens 6-9, Large - Womens 10-13 Mens 9-12, X-Large Womens 13+ Mens 12+.