Salomon's S/Lab MTN Ski Boot is lightweight option for aggressive skiers who are looking to crush the climbs and ski steep, technical lines. With a stiff 120 flex to drive big planks down powder-filled bowls and tight chutes, and narrow, performance-first last, this boot can certainly charge, but its low weight and impressive 47-degree range of motion in walk mode means you'll be setting the skinner after every storm, and heading back up for more after every descent.A Grilamid shell maintains the boot's stiffness without weighing you down, and a carbon spine and Pebax cuff provide rebound, stability, and impressive power transfer for a boot that's so light on the uphill. Salomon's signature Custom Shell HD and foam liner are both easy to thermo-mold for a precise, custom fit that's comfortable on all-days tours and keeps your foot secure for control on the descents. A rubber, rockered sole ensures a natural stride and reliable grip on those inevitable, icy bootpacks up steep ridges to access that line you've had your eye on all season long.