Siri Warm Waterproof is a durable and waterproof boot with warm lining made of 70% natural rubber with an elegant anti-slip design. In addition, the boot is crafted with 30% rubber and has beautiful fish leather details on the heel. A distinctive track sole completes the boot for great comfort. Soft PU-foam is used for the insole of the sandal, which is both lightweight and shock-absorbing. The breathability of the boot is ensured by the use of a WODEN airflow footbed and an outsole based on our Natural Soft technology. A technology designed to ensure the best possible comfort, making Siri Warm Waterproof a comfortable waterproof companion on the move.