Adrian Boot Pearl is made of recycled nylon. It has Velcro straps that make the boots easy to put on and take off. The insole features a soft base crafted from light and shock-absorbing EVA foam, covered with the characteristic WODEN cork designed to ensure breathability. Our children’s styles always feature size markings on the insole, so you can be sure of your child’s correct size. Our outsole consists of 65% natural rubber, 10% recycled rubber and 25% conventionally produced rubber. This guarantees your child stability and durability. Adrian Boot Pearl is waterproof.