Supportive footwear begins with what's inside your kid's shoes, and these socks provide lots of support while complementing their nikes. They have a breathable mesh upper, the ribbed arch support band helps with balance, to prevent or relieve pain and comfy cushioning at the bottom, heel and toe helps absorb impact during every run, jump and skip while dri-fit technology wicks away moisture from skin and is quick drying to help keep feet cool and dry during play. Fits toddler & little kid shoe sizes 10-3.