The R/Fit S is for beginners and intermediate level skiers who seek comfort and control in a boot that will comfortably accommodate a wide range of foot shapes. The lightest series of sport performance all mountain ski boots ever offered. Advanced CAD design technology, 3D prototyping, and advanced polymers for a high performance ski boot with low mass and ultra-light weight. Focus on: calf adapt cuff to accomodate large calf sizes, biometric stance to easily find the most comfortable spot on your skis, soft polyurethane panel insert at the instep that allows for smooth, easy entry and exit, 102 mm Biofit last which provides pre-molded relief in the most common fit “issue” areas. ARCHITECTURE : Overlap – 2 piece CUFF : Fixed MATERIAL : PP+/PP+ BUCKLES : 4 Alu LINER : Comfort liner SOLE : Alpine BINDING SYSTEM : Alpine / GripWalk LAST : 102 mm Biofit.