Momo Baby Boys First Walker Mason Sandal Shoes (US Toddler 4) PU leather upper/leather insole/rubber sole Imported Rubber sole Accepted by the American Podiatric Medical Association (APMA) Rubber soles with deep tread pattern increases slip-resistance Flexibility of the sole enables a better natural shift of weight from the back to front of the shoe when walking Fan-shaped toe box resembles the shape of child's foot, allowing the big and small toe to move freely Adjustable elastic straps with Velcro makes it simple to get on and off