The Rab Firewall Mountain Jacket is a versatile 3-layer shell built for hiking, scrambling, and mountaineering in all conditions. Using Pertex® Shield fabric, it delivers 20,000mm waterproofing and 20,000g/m²/24 hrs breathability, protecting against rain and internal moisture. Designed for year-round use, it features a fully adjustable mountain hood with stiff peak, articulated sleeves for freedom of movement, and pit zips for temperature regulation. A YKK® AquaGuard® front zip with chin guard adds comfort and durability, while hand and chest pockets stay accessible with a harness or pack. From wet ridges to long alpine days, the Firewall ensures reliable protection, comfort, and performance beyond the treeline.
Features:
3-layer Pertex® Shield fabric – lightweight, waterproof, breathable (20,000mm HH / 20,000 MVTR)
YKK® AquaGuard® front zip with chin guard for comfort
Adjustable mountain hood with robust peak for reliable coverage
Articulated sleeves for improved movement and fit
Two hand pockets + one chest pocket accessible with harness or pack
Pit zips for ventilation during strenuous climbs
Extended adjustable cuffs designed to fit over gloves
Dual rear hem adjustment with single-handed use
Specifications:
Activities: Hiking, Scrambling, Mountaineering
Fit: Regular
Weight: 492g (Size M)
Centre back length: 78cm (Size M)
Fabric: 40D Pertex® Shield 3-Layer with fluorocarbon-free DWR
Waterproof Rating: 20,000mm
Breathability: 20,000g/m²/24 hrs