The Maestrale RS is a top selling AT model thanks to its blend of comfort on the ascent and total performance on the descent. This latest version retains the Grilamid/Carbon Grilamid LFT construction that saves crucial weight without losing power, and now uses Grilamid BIO on the shell to maintain performance with a reduction in CO2 emissions during production. Speed Lock Plus and the Wave Closure System make switching from ski to tour mode simple; the Intuition liner is 100% mouldable for the best possible fit.Ability LevelOverviewFitFirm hold around the rear foot, medium width across the forefoot and over the instep but being a 3 piece shell there is some flexibility for volume over the top of the foot.Shell Carbon Grilamid LFT and Grilamid shell, Grilamid BIO cuff, mouldable. Carbon Grilamid LFT is a polyamide reinforced with long carbon fibres that improve the elongation resistance properties and the rigidity of Grilamid, without increasing its density when compared with the normal short fibres. This allows a reduction in the thicknesses of the shell and cuff, creating a light product but at the same time still high performance. The Grilamid BIO cuff uses a high bio content polymer that ensures a significant reduction in Co2 emissions, with unchanged properties of stiffness, elasticity and high impact performance. A Pebax tongue blends overlap power and the ease of a cabrio style entry.LinerPro Flex Performance, mouldable. The Intuition thermoformable liner guarantees a precise, yet comfortable fit. Intuition liners ensure feet are kept warm and comfortable during extended use, without pressure points.Key FeaturesWave Closure SystemProvides a lightweight and secure closure, comfortably wrapping the foot.Speedlock XT Ski/Walk mechanismeasy to unlock and lock, thanks to a lever with an integrated pull loop it is even simple to use with gloves. The system is enhanced by the Friction Free technology, in fact, there isn\'t any connecting rod between the shell and cuff.ReCCO TechnologyWith the aid of ReCCO technology, rescue teams can track you in the event of an avalanche. The technology includes ReCCO reflectors attached to clothing, helmets, guards and boots, and ReCCO detectors used by over 800 rescue organisations worldwide. The reflectors and detectors allow users to track missing individuals thanks to the use of harmonic radar technology. ReCCO technology is an additional tool that can be used alongside avalanche transceivers, probes and rescue dogs. The technology enables rescue organisations to find buried or lost individuals quicker and to increase the chance of survival.Axial evo Alpine ConstructionCreating the best in touring comfort for the up and powerful responsiveness for the down, this unique Scarpa cabrio style design gives the best of both worlds. The forefoot and the cuff buckles, combined with the instep strap, allows you to easily adjust the volume, locking your foot in securely for the down while still being able to quickly open the boot to allow for a natural uphill stride.Grilamid BIOGrilamid BIO is part of ems-Grivory\'s complete line of Greenline bio-based polyamides. This polymer with a high BIO content guarantees a significant reduction in CO2 emissions while maintaining its main properties of stiffness and elasticity and high impact unaltered. In fact, it derives from the synthesis of castor oil. The castor plant does not compete with food crops for the land and is grown in semi-arid areas (India, China, Brazil). It is, therefore, an excellent alternative to polymers derived from fossil sources and is completely recyclable and non-biodegradable.SpecificationCategory: BackcountryFlex: 125Last Width: 101Custom Shell: NoCustom Liner: YesPower Strap: 45mm Velcro with ReCCO Volume: MediumClips: 3 x Buckles, MicroadjustableSole Unit: Tour (ISO 9523)Pin Inserts: YesHike Mode: Yes, Speed Lock XTRange of Motion: 60Weight (g): 1450 (1/2 pair size 27.0)Binding Compatibility: Multi Norm, PinCert, Pin