Upper Features: Quarter Package 3D lasted Curv� Composite upper with X-rib pattern Lining Material HYDRA MAX 2 liner with integrated TOTAL EDGE comfort Ankle Padding Lightweight form fit foam ankle pads Tongue Construction FORM-FIT 3 52 oz. 3-piece pro felt tongue, with integrated and enhanced abrasion resistant metatarsal guard Footbed FORM-FIT+ with ERGOTOE protection and grip, integrated and customizable toe protection, moisture management, and heel stabilizer Thermoformable Full upper Lower Features: Outsole Ultra lightweight, vented carbon composite Blade Holder TUUK LIGHTSPEED EDGE Runner TUUK LS Fusion runner