VicBre Kids Chest Waders Waterproof Trousers Non-Slip Boots. So that children can have fun and parents can rest assured. Waterproof & Comfortable: The double-layer fabric is made of high-quality PVC material which is waterproof and wear-resistant, and the inner layer is knitted fabric which is skin-friendly and designed to be lightweight and non-restrictive, ensuring that your child stays dry and comfortable during water sports.