Sizing:
Infant 0-3 Toddler Shoe Size
Extra Small 3-6 Toddler
Small 7-10 Toddler
Medium 10-13 Toddler/Kids
Large 1-7 Big Kids/Womens 4-10/Mens 4-8
Sizes Infant, Extra Small, Small, Medium have "Heartbreaker" grips on the bottom of the feet + large have a "Heartbreaker" stiched logo on the bottom of the feet.