Dalbello Gaia 1 Ski Boots - Junior Girls' Features: Flex - 20 Last - Junior Last Material - DB Hyperlite Liner - Super-Comfort Buckle - PJ9 Macro ALU Technology: Cabrio Design - Smooth, progressive power transmission, long range of flex, dynamic rebound, excellent shock absorption. Dynalink - independently functioning heel/instep closure assembly, minimizes foot sliding, heel lift and shell distortion during flex. Kinetic Response Tongue - Highly resilient polyamide flex ribbed tongue, stays in permanent contact with the leg, improved responsiveness and control, interchangeable design for different flexes. Ski-Hike - Burly cuff lock mechanism frees the upper cuff from the lower shell, long range of motion for effective hiking and climbing, no compromise of skiing performance due to unique Cabrio design.