Adrian Boot Pearl is made of nylon. It has velcro straps, which make it easy to put on and take off. In the insole, you will find a soft cushioning in the foam material EVA, which is both lightweight and shock-absorbing, covered with the characteristic WODEN cork, which ensures breathability. Our childrens styles always come with a growth allowance on the insole, so you can be sure of your childs correct size. Our outsole consists of 65% natural rubber, 10% rubber, and 25% conventionally produced rubber. This guarantees your child stability and durability. Adrian Boot Print is waterproof.