From the manufacturer

The 4-Quattro Pro is built for skiers who charge hard and don't compromise on the way up or the way down. Whether you're skinning to a remote couloir or lapping steep resort terrain, this is the boot that keeps pace with your ambitions, without adding unnecessary weight to your setup. A Pebax® Rnew® shell and cuff delivers the lightest possible platform for a freeride boot at this performance level, while a reinforced cuff construction provides the torsional rigidity needed to drive wider skis with confidence. The Secure Speedlock 4 ski/walk mode locks out completely for powerful, precise turns and releases instantly for efficient uphill travel. With a flex of 130+, 19° forward lean, and a 100mm last, the 4-Quattro Pro fits the full spectrum of aggressive freeride and backcountry objectives. The Intuition® 4Pro Flex Ride liner heat-molds to your foot for a custom fit, and the PRESA® SKI-01 / GripWalk Tour outsole (ISO 23223) handles approach terrain and resort walkability with equal confidence.

Features