Quarter Package: Sublimated tech nylon with thermoformed X-rib pattern Lining Material: Hydrophobic microfiber Ankle Support: Patented integrated, anatomical heel/ankle support Ankle Padding: Insta-form+ foam ankle pads Tongue Construction: Anatomical, 2-piece felt form-fit Footbed: Form-Fit EVA footbed Outsole: Lightweight, Pro-8 beveled TPU Blade Holder and Runner: Tuuk Lightspeed Pro with solid stainless steel runner