With a fully functional zipper, suede construction, and fish leather details, Ydun Metallic Zipper is an expression of a relevant zipper trend. Unique to WODEN sneakers is that we incorporate at least 50% polyester from PET bottles in the material. Soft PU foam is used for the insole, which is not only lightweight but also shock-absorbing. In addition to the characteristic WODEN cork sole, Ydun Metallic Zipper has a WODEN airflow insole to ensure breathability and provide an ultra-soft walking experience all day long. • Sole made of EVA • Functional zipper on the outside • LWG certified suede • Fish leather details • Cork insole with Airflow system.