An efficient alpine shell with just the right balance of weight, function and weather protection.Rab says:From alpine linkups to exposed ridges, this exceptionally packable waterproof jacket is made for your tough ascents in fickle conditions. All its features have been designed to reduce bulk and weight so its easy to stash when clouds clear, and with 3-layerPertex Shield, it offers uncompromised protection when a storm strikes mid-climb. With ascent-specific articulation its the ideal retreat for alpine climbing, yet it also offers enduring comfort on any technical mountain pursuit in unpredictable weather, whether youre fast hiking or negotiating knife-edge ridgelines.Our VerdictThe Firewall Alpine 3L Jacket is a refined shell that balances mobility and protection, coming in at 334g (Medium), it feels well-tuned for fast, technical objectives. The updated Pertex Shield fabric keeps it light and compact without sacrificing waterproof performance, while still offering solid breathability. The regular fit works well over bulkier puffy layers, and the articulated cut moves naturally through scrambles or steep climbs.The hood is easy to adjust, featuring a stiffened peak that maintains its shape in the wind. Details like the clean cuff design and single-pull hem cinch keep the jacket fuss-free.- Reviewed by Ultralight Outdoor GearFeaturesSemi-elasticated hood with stiffened peak and rear volume adjustment for enhanced fitYKK AquaGuard centre front zip with chin guard for comfortYKK zipped chest pocket doubles as integrated stuff sackSemi-elasticated extended cuffs for comfortSingle side rear hem adjustment with anti snag tetherReflective Rab logo and rear printSpecificationsSmall weighs: 326gMedium weighs: 334gLarge weighs: 339gXLarge weighs: 357gCentre back length (Size M): 77.5 cm / 30.5 inFit: RegularMaterial & Construction20D Pertex Shield 2.5-Layer construction waterproof technology with fluorocarbon-free DWR (85gsm) HH: 20,000mm/MVTR: 20,000 g/m2/24hrs55% Polyamide, 45% Polyamide (Recycled) with Polyurethane membraneHelp & advice:Time-Saver Guide to Choosing a Waterproof JacketTime-Saver Guide to PFC FreeAbout RabChoosing a Waterproof JacketMVTR BreathabilityHydrostatic HeadRecycled Content in Outdoor GearRab Sustainability and Responsibility

An efficient alpine shell with just the right balance of weight, function and weather protection.Rab says:From alpine linkups to exposed ridges, this exceptionally packable waterproof jacket is made for your toug