Mens Alpha Guide Jacket From MontaneFabric:Main: Pertex Microlight StretchArm, shoulders and hood: DryActiv StretchLiningPEAQ SyntheticPEAQ HyperInsulation: Polartec AlphaOuter fabric Pertex Microlight Stretch is windproof, showerproof, fast drying and features an exceptional durable water repellencyHyper breathable, highly packable Polartec Alpha insulation throughoutPEAQ Synthetic liner in shoulders and inner lower backPEAQ Hyper; an exceptionally breathable interior liner in front and back of jacketArms, hood and shoulders feature DryActiv Stretch with a brushed fleece inner, anti-pilling outer face and high stretchActive fit with next to skin tailoring in armsTechnical tailoring in the arms for articulationDryActiv Stretch fleece hoodTwo insulated hand-warmer pockets positioned clear of rucksack or climbing harness beltFull length two way YKK reverse coil front zipInternal wind-strip behind centre front zipRoll over beardguardLow profile cuffs with thumb loopsAdjustable lower hemFit: Active MountainWeight: 458gDesigned and developed for climbing, the Men's Alpha Guide Jacket from Montane gives effective insulation to the core body whilst leaving the arms free from any restriction. It combines the unique properties of Pertex Microlight Stretch, Polartec Alpha and DryActiv Stretch to create a truly formidable jacket. A great jacket it provides torso protection in a new and unique way, using the revolutionary Polartec Alpha - the latest evolutionary step in synthetic insulation. With its open, woven construction, Polartec Alpha combines warmth with hyper breathability, whilst at the same time being extremely compressible. This new format of insulation is encased in Pertex Microlight Stretch, which provides high wind resistance combined with the stretch needed for climbing movement. The jacket also features a stretch hood that fits underneath a climbing helmet and stretch arms with thumb loops. The Alpha Guide is not so much a piece of clothing, rather a piece of climbing equipment.