UPPER Upper in water-resistant leather, collar and Flex Point in fabric and 3D protective TPU toe cap. LACING The new Speed Lacing fastening system uses small bi-component part in lightweight steel and plastic. The fastening that extends towards the toe is divided into two sections. The lower part with eyelets allows the laces to pass through smoothly and adjust the fit in a single movement. The upper section has a lace lock that divides the fastening tension areas and hooks to progressively wrap the ankle securely. LINING The Gore-Tex ePE membrane provides excellent performance and sustainability, offering a waterproof, and breathable product. The membrane's optimal strength-to-weight ratio allows it to create extremely lightweight and thin products without compromising durability and high performance. The PFAS-free laminate, including the durable water repellent (DWR) treatment, demonstrates a commitment to responsible chemical management, while also reducing the carbon footprint (per Higg MSI).SOLE The SALIX Trek sole with midsole in dual-density PU for low weight and high levels of cushioning. Vibram® XS Trek rubber outsole.