Monica Metallic Nylon is made of the materials nylon and calfskin and has adjustable velcro straps. The backing material of WODEN's sneakers consists of 50% recycled polyester derived from plastic bottles. 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. Our outsole consists of 65% natural rubber, 10% recycled rubber, and 25% conventionally produced rubber. It guarantees stability and durability.