Rab Firewall Mountain Jacket

High-performance outdoor jacket for men with excellent weather protection and well-thought-out details.

The Firewall Mountain Jacket from Rab is the perfect companion for anyone spending time outdoors in changeable weather. Thanks to its 3-layer Pertex® Shield fabric, this jacket offers reliable protection against rain and wind, making it ideal for hikes or other outdoor activities. With an impressive water column rating of 20,000 mm, you’ll stay dry even in heavy rain, while the breathability of 20,000 g/m²/24 h ensures a comfortable fit, even during intense physical activity.
A special feature of the Firewall Mountain Jacket is its 2-way adjustable hood, which has internal drawstring locks and a flexible, stiffened polymer peak to provide optimal protection. The pre-shaped sleeves and longer cuffs with adjustable Velcro closures ensure an excellent fit, even when wearing gloves. YKK® AquaGuard® zippers under the armpits provide additional ventilation and are easy to use during strenuous climbs.
The jacket features a central YKK® AquaGuard® front zipper that provides comfortable chin protection. Two slanted pockets, also with water-repellent zippers, offer practical storage space that remains easily accessible even when wearing a climbing harness or backpack. The one-handed adjustable hem and adjustable cuffs allow for a custom fit, ensuring the jacket always sits perfectly.

Product details

Made for:

Men

Optimal for:

Hiking

Closure:

continuous front zipper

Hood:

adjustable

Hem:

Drawstring in hem

Weight:

492 g (in medium gru00f6u00dfe)

Water column:

20000 mm

Breathability:

20000 g/m²/24h (MVTR)

Fit:

normal

Material properties:

Breathable
Waterproof

Features:

Ventilation zipper
Breathable
Waterproof
2-way adjustable hood with concealed cord fasteners inside, can be adjusted with one hand, with flexible, reinforced polymer peak for additional protection
YKKu00ae AquaGuardu00ae center front zip with comfortable chin guard
YKK® AquaGuard® zippers for efficient torso ventilation via the armpits
Fully pre-shaped sleeves for a better fit and more comfort
2 slanted pockets with YKK® AquaGuard® zipper
Longer cuffs with adjustable Velcro fastener for use with gloves or mittens
Rear hem adjustable on both sides, one-hand adjustable
Drawstring in hem
Velcro fasteners on the sleeves
preformed sleeves

Materials:

100% Polyamide Woven Laminated Jacket Mens

Features:

windproof, waterproof, breathable

Summary

Gender:	Men
Activity:	Climb & Boulder, Hiking, Leisure, Trekking, Urban & Work
Features (Jackets):	Adjustable Hood, Helmet compatible hood, Hood, Ventilation zipper
Fabrics:	3 Layers, DWR impregnated, Pertex®
Characteristics:	breathable, waterproof, water repellent, windproof
Cut:	Regular fit
Zip Length (Outerwear):	Full Zip
Features (Tops):	Chest pocket

Our tip

Which size fits? ›

SportFits advice

Rab Firewall Mountain Jacket

For wearing with gloves

Waterproof jacket | 3L | 20,000 mm | underarm zips

Which size fits?

Chest

Enter centimetres, the answer appears straight away. Chest: put the tape under the arms around the widest part of the chest.

Size chart

Size	Chest (cm)
S	94
M	102
L	109
XL	117
XXL	122
XXX-Large	129.5

Based on the Rab size chart. A starting point: cuts vary.

The essentials

A good fit if you hike in the mountains wearing gloves
A good fit if you want targeted ventilation under the arms on ascents
Less so if you require a hood specifically designed for wearing with a helmet in the mountains.

What is it for?

How good is it?compared with the Rain jackets in our Rain jacket buying advice

Water columnmedium20,000 mm

Our take

For year-round mountain hiking, the Firewall Mountain provides long, adjustable cuffs that fit over gloves. Open the underarm zips on demanding ascents. The back length is 78 cm in size M.

How do we know?

From the details in the shop and from the manufacturer. The rating compares the Rain jackets in our Rain jacket buying advice.