Size small: Youth, Women's up to size 10, Men's up to size 8.5Size large: Men's size 9 and up & Women's size 10.5 and up Laces that lock in your comfort, now available in a 3-pack. Tie them once and you're done. Sta-Put technology eliminates the need to adjust or re-tie your laces during a round. Raised silicone squares printed down the lace comfortably form the shoe to your foot and lock it in place Durable polyester material