Designed to handle both on- and off-piste adventures, this boot is compatible with alpine-touring bindings as well as GripWalk alpine bindings, letting you use one boot across multiple ski setups. For added comfort, we gave the 4-Quattro a heat-moldable liner and 61 degrees of cuff rotation when in walk mode, making long skin tracks feel easier than ever before. Don't let the lightweight design fool you - with a 100 flex rating and four micro-adjustable buckles, this boot skis well in a wide variety of conditions. Built with an eco-friendly, plant-based Grilamid shell and cuff, you'll enjoy a progressive flex that drives the perfect amount of power to your ski no matter how hard you're charging. As versatile as it is comfortable, this is one ski boot you'll want for every adventure.