Quarter Package: Ultra-light tech mesh upper with thermoformed X-rib pattern * Lining Material: HYDRA MAX liner * Heel Support: Patented pro-integrated, anatomical heel/ankle support * Ankle Padding: NEW Lightweight form fit ankle pads * Tongue Construction: FORM-FIT 2 molded tongue, with lace bite channel, abrasion resistant material, and high-density metatarsal guard