The Salomon Escape Plus Prolink is ideal for cross country skiers that are seeking a warm and comfortable boot with enough grip for walking. It has an adjustable, anatomical fit for a true and dialed in fit. Along with improved ankle support, excellent insulation will keep your feet warm and comfortable all day long on the trail. Compatible with Turnamic, NNN, and Prolink Bindings, Custom Fit Lining, Thinsulate Lining, Quicklace, 105 Touring Fit, Ergonomic Touring Cuff, Warranty: One Year, XC Ski Best Use: Groomed/Ungroomed, Compatible Binding System: NNN, External Frame: No, Covered Laces: Yes, Insulation Material: Thinsulate, Ski Gear Intended Use: All Mountain, Support: On Trail Recreational, Warmth: Warmer, Skill Range: Beginner - Advanced Intermediate, Model Year: 2021, Product ID: 587136, Model Number: L40842100055, GTIN: 0889645984483