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A dependable mountain shell that’s built to take a battering, made for wet, cold, and high places where you need your kit to work hard.
Rab says:
The Firewall Mountain Jacket comes into its own when the forecast threatens to disrupt your plans. Fully featured and highly protective, it uses 3-layer Pertex® Shield to deflect persistent drizzle and torrential rain, so you can keep exploring unfazed. Equipped for year-round hikes, scrambles, and mountaineering, the Firewall Mountain Jacket is a true all-mountain shell.
Our Verdict
The updated Rab Firewall Mountain 3L Jacket is a solid performer in prolonged foul weather. At 486g (UK12), it’s on the heavier side for a waterproof shell, but it earns its keep with durable construction and a well-thought-out feature set. The Pertex Shield 3-layer fabric offers trustworthy waterproofing and doesn’t feel plasticky against the skin, even during long stints on the move.
The helmet-compatible hood adjusts easily, and the peak holds its shape well in the wind. The pit zips are generous, helping dump heat fast without unzipping the front. I found the articulated sleeves and overall cut comfortable, with room for layers underneath without feeling oversized.
Tough, weather-ready and breathable enough for year-round mountain use.
- Reviewed by Ultralight Outdoor Gear
Features
- 2-way adjustable hood with concealed internal cord locks and single handed adjustment with stiffened flexible polymer peak for added protection
- YKK® AquaGuard® centre front zip with chin guard for comfort
- YKK® AquaGuard® pit zips for efficient core ventilation
- Fully articulated sleeves for improved fit and comfort
- 2 YKK® AquaGuard® zipped A-line pockets
- Extended cuffs with hook and loop adjustment for fit with gloves or mitts
- Dual sided rear hem adjustment with single handed adjustment
Specifications
- UK 8 weighs: 447g
- UK 10 weighs: 465g
- UK 12 weighs: 486g
- UK 14 weighs: 498g
- Fit: Regular
- Centre back length (Size 10): 73 cm/28.7 inch
Material & Construction
- 40D Pertex® Shield 3-Layer construction waterproof technology with fluorocarbon-free DWR (133gsm) HH: 20,000mm/MVTR: 20,000 g/m2/24hrs
- Matrix™ single weave stretch nylon (130gsm)with fluorocarbon-free DWR
- Main Body: 100% Polyamide (Recycled) with Polyurethane membrane, Reverse: 100% Polyamide
