The Rossignol X8 Classic NNN Cross Country Ski Boot is an awesome option for cross country skiers looking for a classic and comfortable feel. The Mobile Cuff is designed to help you make consistent and locked in strides while providing you with torsional rigidity to keep you on track. The lace system is easy to use and will have the X8's on in a moment's notice while offering generous support. A combination of the EVA foam strap and fleece lining delivers maximum comfort and warmth to keep your feet protected from harsh environments. Speedlace Lock- Effortless closure and better foot support., Mobile Cuff- Optimal movement with enhanced torsion control., Adjustable Strap- Adds control and support., Dual Density Strap- EVA Foam strap for better comfort and support., Compatible with Turnamic, NNN, and Prolink Bindings, Warranty: One Year, XC Ski Best Use: Groomed, Compatible Binding System: NNN, External Frame: No, Covered Laces: Yes, Insulation Material: Win Therm, Ski Gear Intended Use: Cross Country, Support: On Trail Recreational, Warmth: Warm, Model Year: 2022, Product ID: 914907, Shipping Restriction: This item is not available for shipment outside of the United States., Model Number: RIK1260.400, GTIN: 3607683819843