Firewall 3L Jacket

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A tough, feature-rich shell built for unpredictable weather, ideal for year-round use.

Rab says: 

Equipped for demanding mountain hikes and scrambles in uncertain weather, the Firewall Jacket offers 3-layer waterproof protection to keep the elements at bay. With robust 40D Pertex® Shield fabric, it’s built to survive scuffs with rock and pack abrasion, yet is highly breathable and comfortable. When you’re gaining elevation in a turbulent forecast, this protective shell is prepared for anything in your path.

Our Verdict

The updated Rab Firewall 3L Jacket feels like it’s been built for serious days out. At 478g for a Medium, it’s not chasing ultralight status. The 40D Pertex Shield fabric is robust and fully waterproof, with breathability that keeps pace on steep climbs or under a heavy pack. The finish is soft enough to wear comfortably for hours, and the new tweaks to fit and articulation are subtle but appreciated.

The hood is one of the better ones I’ve used lately: plenty of adjustment, a solid peak that doesn’t flap, and it moves with your head. Pit zips offer proper airflow when things heat up, and the pockets are well-placed and generously sized. I’d reapply the DWR occasionally, but that’s expected for any shell seeing regular use.

– Reviewed by Ultralight Outdoor Gear

Features

• 2-way adjustable hood with cord locks and single handed adjustment with stiffened flexible polymer peak for added protection
• YKK® front zip with external and internal storm guards & snap closure for ventilation
• 2 YKK® zipped pit zips
• 2 YKK® zipped hand pockets with storm guards
• Extended cuffs with hook and loop adjustment for better fit
• Lightweight single sided rear hem adjustment with anti snag tether

Specifications

• Small pair weighs: 448g
• Medium pair weighs: 478g
• Large pair weighs: 491g
• XLarge pair weighs: 524g
• Fit: Regular
• Centre back length (Size M): 75 cm/29.5 inch

Material & Construction

• 40D Pertex® Shield 3-Layer construction waterproof technology with fluorocarbon-free DWR (148gsm) HH: 20,000mm/MVTR: 20,000 g/m2/24hrs
• Main Body: 100% Polyamide (Recycled) with Polyurethane membrane, Reverse: 100% Polyamide (Recycled)

Help & advice:

• Pertex Shield Technology Explained
• Time-Saver Guide to Choosing a Waterproof Jacket
• Time-Saver Guide to PFC Free
• About Rab
• Choosing a Waterproof Jacket
• MVTR Breathability
• Hydrostatic Head
• Recycled Content in Outdoor Gear
• Rab Sustainability and Responsibility