Elena Patent is handmade in Portugal and is a classic boot made of crinkled leather. All leather is sourced. The boot has fish leather detailing and 100% webbing. The insole is made of a soft PU-foam material, which is both light and shock-absorbing. It is covered with the characteristic WODEN cork, to ensure breathability. Elena Patent has a characteristic track sole, which is based on our Natural Soft technology. A technology designed to give you the best comfort. The track sole consists of 65% natural rubber, 10% rubber, and 25% conventionally produced rubber.