Rossignol Alltrack 80 Ski Boots - Kids': Back bowl powder laps or beyond the gates, the Alltrack Jr 80 is designed for young skiers looking to explore the whole mountain. The releasable cuff offers a natural range of motion for hiking, while the Generative Design Grid shell is engineered for reduced weight and full power transmission to handle all conditions. The 100mm last and custom liner offer a comfortable fit for exploring the whole mountain. Medium Fit Medium fit features a 100mm last for a precise, comfortable fit that balances comfort and control Lightweight, Full Power Generative Design Grid minimizes boot wall thickness for the most effective use of material to reduce weight and enhance power transfer Optimized Hike Mode The lower boot shell is designed to offer a 50-degree range of motion in walk mode for efficient touring and maximum power for skiing when in ski mode Custom Comfort Custom liners offer internal customization for enhanced comfort and support GRIPWALKA(R) Compatible (sold separately) GRIPWALKA(R) soles feature a rubber tread and rockered toe for a more natural walking motion and increased traction