These ski boots are great for intermediate skiers seeking the perfect blend of. The R/Fit 80 is your go-to boot. Designed to cater to a wide range of foot shapes, it ensures a. 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. Overlap – 2 piece.