Description of Nordica Hot Rod Nitrous Ski Boots Breathe deeply and fly If you are seeking a freeride responsive, race performance boot, then the Nordica Hot Rod Nitrous is right down your alley. Push your freeriding experience to the next level because the Nitrous demands it. The Precision Fit thermo-moldable liner snugly wraps your foot in comfort eliminating discomfort when you race through the finish line. Features: Shell and Cuff Material: Polyether- SOFT Liner: Precision Fit Footbed: Performance Fit Pro Flex Index: 100 Buckles: 4 Micro Alu + 2 Servolock Velcro Strap: ENERGY DRIVER (by BOOSTER), 35 mm Wedge: PU foam Rear Spoiler: Quick Set Spoiler Heel Height: 45mm