Rubber soleHeel measures approximately 4.33 inches"SOFT-- Lightweight kid-friendly PU leather and rubber material, soft and comfortable, breathable and designed. Non-slip rubber sole keep babys feet easier and safer play.CUTE - Adorable Casual Sandals Design,Your Little Love would Draw much Attention and Compliment.HOOK LOOP - Easy on and easy off. The adjustable hook & loop strap can easily adjust the size and fit, still stay on your babys feet.NON SLIP - Flexible, lightweight, non-slip rubber outsole, providing traction for safe play. Perfect for growing babies, newborns, Infants, first walkers and toddlers.GUARANTEED -100% Guaranteed to return the shoes by free if any quality problems. Please measure your baby's foot for the best possible fit. If Your Baby has a Tiny Feet, Please Order a size down. Thanks.