evo.com | Rossignol Alpine Ski Boots > An all-mountain weapon perfectly suited to intermediate to advanced skiers looking to explore off-piste, the Rossignol Alltrack Pro 100 X Ski Boots make it easy to switch to walk mode so you can boot or skin the last few hundred feet up the ridge. The 100-flex shell and cuff provide a super smooth and progressive flex that's ideal for everything from chutes to tight tree lines. Shell Polyurethane Replaceable ISO 5355 Alpine Soles Last: 100 mm Medium volume forefoot width that doesn't sacrifice ankle and heel hold; a great balance between ski control and comfort for average volume feet. 4 Micro-Adjust Aluminum Buckles Thermo Optisensor 3D T3 Liner OptiSensor 3D liners deliver a new level of optimized foot wrapping, comfort and support. Strategically placed materials in three-key fit zones maximize the interaction between the foot, liner, and shell. Softer ankle and instep areas increase comfort and foot wrapping. A stiffer heel cup provides superior heel lock, increasing support and control for enhanced performance. New Thinsulate | Rossignol Alltrack Pro 100 X Ski Boots 2019