La Sportiva is back with a refined Sparkle 2.0 AT ski boot that is 5% stiffer and 15% laterally stiffer too. This is the boot for ski mountaineering enthusiasts, free riders and ski tourers that chase the fresh and live for the sparkle. Born from Stratos technology, the Sparkle 2.0 is the no compromises result combining four-buckle downhill performance with two-buckle touring comfort and ease on the up. The shell is made of lightweight Grilamid(R) while the Carbon reinforced Vertebra drives the powerful 110-Flex downhill performance. The 60deg range of motion and EZ Flex tongue make for an incredible walking experience and make the boot great for technical climbing. Features: 5% stiffer Flex 15% Laterally stiffer Lower toe ramp for universal (Tech & Alpine) use Shell: Grilamid Cuff: Pebax Spoiler: Marfram Vertebra: Carbon Reinforced Grilamid Tongue: Grilamid Flex 110 Buckle Closures: 4 + optional power strap Range of motion: 60deg Sole: Vibram(R) Binding Compatibility: Tech, AT, Universal Alpine