Description of Nordica Speedmachine 8 Ski Boots When it comes down to it, you got the need…the need for speed! With high performance, power, and precision the Nordica Speedmachine ski boots are like a 400 hp engine that pierces the snow with control and precise turn initiation, progressive flex, and a high degree of rebound. Nordica ski boots designed for downhill speed junkies. Features: Shell and cuff material: polyether-polyurethane Easy entry system: hp slide-in Sole: anti-slip Liner: pfp performance fit heat ready Footbed: preformance fit Flex adjust: hard/soft Flex index: 100 Buckles: 4 micro alu + 2 servolock Velcro strap: 35 mm Canting: double +/- 2degrees Size range: 24.0-31.0 mp