Last: 99mm – A "narrow average" fit designed to fit most skiers, especially if you have access to professional bootfitting.

Flex: 130 – A very stiff flex for expert and aggressive skiers.

EVA Lightweight Touring Liner – Lange drops bulk and weight in the XT3 Tour liners but retains the comfort with heat moldable closed cell EVA foam.

Cuff – Lyftran™ PP

Shell – Grilamid®

Dual Core Light – A lightweight version of Lange's innovative Dual Core technology. As you drive and flex into your boots, Dual Core Light actively compresses and expands – harnessing potential energy to deliver explosive power, snap, and rebound. Imagine lightweight precision and response, easy entry-and-exit, and a new level of ski boot performance as reactive and dynamic as your own body.

Friction-Free Hinge – Lange's Friction-Free Hinge delivers a critical free-touring solution: ROM efficiency. More efficient range-of-motion (ROM) provides the freedom for fluid, natural movements on the ascent, providing more flow for a more effortless, less fatiguing skinning and hiking stride.

Active Power V-Lock 3.0 – The heart of Lange's all-new XT3, Active Power V-Lock is Lange's patented new multi-performance freetouring technology. Designed to get you up with ease, but powered for the down, Active Power V-Lock delivers an 11° increase in forward ROM in Hike mode, making long skin strides and hikes more efficient and less fatiguing. But lock it down for the descent with a Ski mode that offers the rock-solid connection of a traditional ski boot and you'll instantly feel the power, precision, and control you've been looking for when it's all about the down.

Total Range of Motion – 53˚

Ultra Light Touring Buckles – Reversible front buckle

40mm Velcro Strap

Touring Performance Boot Board – Touring rocker built into the bootboard for more natural foot motion during the stride

Vibram® ISO 9523 Touring Sole

Dynafit® Certified Tech Inserts – Dynafit® certified low-tech inserts offer dependable, trustworthy free-touring performance; the over-molded solid sole construction ensures powerful energy transmission, secure steering and control.