Quarter Package: Ultra-light Tech Mesh with thermoformed X-rib pattern Lining Material: Hydrophobic Clarino synthetic leather Ankle Support: Patented pro-integrated, anatomical heel/ankle support Ankle Padding: Lightweight Insta-form+ foam ankle pads Tongue Construction: Molded, anatomical forward flex tongue with high-density metatarsal guard Footbed: Dry-grip moisture management Outsole: Perforated, full carbon composite Blade Holder and Runner Tuuk Lightspeed 2 with solid stainless steel runner