The Alpina T 10 NNN Cross Country Ski Boot is the perfect option for recreational skiers looking for a solid boot for the trails. Feet and toes stay comfortable and warm thanks to the anatomic footbed for a great fit and Thinsulate insulation for maximum warmth which will have your feet saying thanks at the end of the day. The outer shell is supported with neoprene to keep any unwanted moisture out for warm and dry feet all day long. Turn your cross country dreams into a reality with the T 10 NNN Ski Boot from Alpina. Compatible with Turnamic, NNN, and Prolink Bindings, Anatomic Footbed- Great fit with maximum comfort., Thinsulate Insulation- Adds warmth and extra comfort., Lace Cover- Keeps out any unwanted moisture., 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: Cross Country, Support: On Trail Recreational, Warmth: Warmer, Model Year: 2022, Product ID: 909640, Model Number: 53571K 40, GTIN: 3838421850365