What are the Firewall Guide Pants?
The Firewall Guide Pants are fully featured, waterproof trousers designed for reliable protection from sustained rain, wind and snow, while remaining comfortable during long days in the mountains. They're ideal for versatile use on the mountain, whether mountaineering, winter climbing or hiking in wet conditions.
Materials & Technology
40D Pertex® Shield 3-Layer Fabric
Firewall Guide Pants are built from 40D three-layer PERTEX® Shield, which is a soft, highly breathable, waterproof fabric designed for low bulk protection in the mountains when weight and breathability are key.
The trousers' three-layer construction combines a waterproof, windproof and breathable membrane, robust 40D polyamide face fabric and a soft backer. The 40-denier recycled nylon ripstop outer offers good levels of abrasion resistance for regular use with backpacks while remaining lightweight. Whilst the thin waterproof and windproof membrane provides reliable protection from the elements. A soft backer protects the waterproof membrane from abrasion and improves next-to-skin comfort and durability when worn over base layers.
Although the material is only 40D, it feels reassuringly sturdy yet still comfortable to wear and highly packable to stuff in your rucksack, ready for when the heavens open without taking up heaps of space.
Waterproof Performance
Pertex® Shield delivers a hydrostatic head rating of 20,000mm for dependable waterproof protection in prolonged wet conditions. Whilst a breathability MVTR score of 20,000 g/m2/24hrs allows excess heat and moisture to escape throughout the day to keep you feeling comfortable on challenging sections of trail.
Fluorocarbon-Free DWR Finish
The outer of the trousers is finished with a fluorocarbon-free DWR (durable water repellent) coating to encourage rain to bead off the surface of the jacket rather than soaking into the face fabric (also known as wetting out). This further enhances the trousers' waterproof properties and helps protect the waterproof membrane, without the use of harmful forever chemicals.
Features and Functionality
Full-Length Side Zips
The full-length, two-way YKK® AquaGuard® side zips make it easy to pop them on and off over chunky boots and crampons, whilst also providing versatile ventilation options should you start to get warm on steep, challenging sections of trail.
Adjustable Waist with YKK® AquaGuard® Front Zip
A deep tricot-lined waistband with dual-sided hook-and-loop waist adjustment provides a secure and comfortable fit that can easily be adjusted to suit various layers.
The waistband includes durable brace attachment points, should you wish to attach them to convert the trousers into a bib construction - ideal for use in more technical mountain environments.
The trousers are fastened with a YKK® AquaGuard® waterproof front fly zip for quick, easy on-and-off, without compromising weather protection.
Reinforced Lower Leg
The inside lower leg and hem are reinforced with tough crampon patches to protect this high-wear area from abrasions caused by crampons, microspikes, repeated contact with boots and use in rugged mountainous terrain.
Adjustable Hem
The bottom hem features a snap button adjustment to allow you to tailor the fit over various styles of footwear, allowing you to create a better seal against the elements. It also helps keep any excess material out of the way in more technical sections of the trail when you need a clear line of sight for your foot placements.
Knee Articulation
Articulation at the knees provides a more natural range of movement when walking, climbing or stepping over uneven terrain, whilst also making them feel more comfortable when layered over various trousers styles.
Key Features
- 3-layer Pertex® Shield waterproof construction (40D)
- Full-length 2-way YKK® AquaGuard® side zips with internal storm guard
- Dual-sided hook-and-loop waist adjustment
- Deep tricot-lined waistband with brace attachment points
- YKK® AquaGuard® front fly zip
- Reinforced lower hem with tough crampon patches
- Snap-adjustable hem for boot compatibility
- Knee articulation for improved movement
How do the Firewall Guide Pants fit?
The Firewall Guide Pants are created with Rab's regular fit, which is designed to provide ample room for layering over baselayers and outdoor trousers, whilst still being comfortable and not restricting movement, without being too overly baggy or loose.
What are the Firewall Guide Pants best for?
- Mountaineering and winter climbing
- Hiking in severe weather
- Wet, windy and snowy conditions
- Technical mountain use
- All-day use in exposed terrain