1. Sole: The sole is soft, lighter, more elastic, and anti-collision can be good. Make sure the tile or wood floor won't get scratched and more importantly the comfort, happiness and safety of your baby2. Insole: Use high density memory foam insole to ensure that the baby's feet will not slip into the shoes. Unique insole designed for baby, provide good cushioning and support, reduce the pain of baby learning to walk, let the baby's feet grow healthily3. Vamp: high quality cotton nylon knit vamp, with good air permeability and moisture removal function, keep baby's feet dry and odorless. Super soft, breathable and comfortable all year round4. Available in four sizes, it is very soft, comfortable and stretchy. Easy to clean, hand wash and machine wash