If you’re looking for a waterproof shell that’s rugged, reliable, and ethically made, the Patagonia Women’s Triolet Jacket is one of the best options available. Built with GORE-TEX ePE, Patagonia’s newest sustainable membrane, and a recycled polyester outer, this jacket delivers excellent protection in harsh conditions—from winter hiking in the Lake District to backcountry adventures in the Alps.
In this review, we’ll cover the materials, fit, weather performance, breathability, sustainability credentials, and real-world use to help you decide whether the Triolet belongs in your winter kit.
Construction and Materials
The jacket features Patagonia’s take on 3-layer GORE-TEX ePE—a PFC-free waterproof membrane that’s lighter, more breathable, and better for the environment than legacy ePTFE shells.
- Face Fabric: 100% recycled polyester, 75-denier
- Membrane: GORE-TEX ePE with full seam taping
- Lining: Soft tricot backer for added comfort
- Finish: PFC-free DWR that helps repel light moisture
This combination provides durable weather protection, excellent next-to-skin feel, and an impressively sustainable profile. Patagonia also ensures Fair Trade Certified™ sewing and bluesign® approved fabrics, so it’s built responsibly from start to finish.
Fit and Comfort
Patagonia’s regular fit offers enough room for layering without feeling oversized.
- Sizing: True to size; available from XS to XL
- Mobility: Gusseted underarms and articulated sleeves allow full range of movement
- Hem: Drop-tail hem offers extra coverage when bending or wearing a harness
- Collar: Microfleece-lined chin guard prevents irritation and adds warmth
Overall, it’s comfortable for both technical movement and casual wear. The jacket layers easily over midlayers or under down puffers.
StormHood™ and Adjustability
The helmet-compatible hood is designed for serious weather and alpine protection.
- Brim: Laminated visor maintains shape in wind and channels rain away from your face
- Adjustments: Dual front cords and a rear volume adjuster provide snug customisation
- Coverage: Zips up to the lips with minimal gap — ideal for cold wind or blowing snow
Even without a helmet, the hood cinches well and maintains visibility, though some users find the toggle adjustments fiddly when wearing gloves.
Weather Protection
The Triolet Jacket is built to handle rough weather — and does so confidently.
- Waterproofing: Rated at 28,000mm, the GORE-TEX ePE membrane provides exceptional rain and snow protection
- Windproofing: Sealed seams and robust fabric block out gusts and chill
- Snow Shedding: The smooth shell repels snow well and keeps layers dry underneath
Whether you’re walking through sleet in Snowdonia or skinning up icy ascents, the jacket keeps you protected and dry.
Breathability and Ventilation
Despite its solid build, the Triolet remains impressively breathable during exertion.
- Pit Zips: Large, two-way zippers help dump heat quickly
- Backer Fabric: The soft tricot lining feels good and helps wick moisture
- Membrane: More breathable than older GORE-TEX options — good for high-output activity in cold climates
Ideal for ski touring, scrambling, or winter hiking, it avoids the swampy sensation that plagues many heavy hardshells.
Storage and Features
Patagonia prioritises function and accessibility in its pocket layout and trim.
- Chest Pockets: Two Napoleon-style external pockets with water-resistant zips
- Handwarmer Pockets: Positioned above hipbelt level so they’re always usable
- Interior Drop-In Pocket: Handy for gloves or a beanie
- RECCO® Reflector: Built into the hood for passive avalanche search functionality
- Hem and Cuffs: Dual hem drawcords and hook-and-loop cuffs seal out drafts and snow
There’s no powder skirt or internal zipped pocket, but the essentials are covered with high-quality components.
Sustainability Highlights
Patagonia’s environmental leadership shines here.
- PFC-Free Membrane and DWR
- 100% Recycled Polyester Outer
- Fair Trade Certified™ Construction
- Bluesign® Approved Materials
In a market filled with fossil-fuel heavy outdoor fabrics, the Triolet sets a high standard for eco-friendly performance gear.
On the Trail: Real-World Testing
From icy ridgelines to soggy valley trails, the Triolet performs consistently.
- Wet Weather: Keeps water out during prolonged exposure to rain and wet snow
- Snow Travel: Holds up well against abrasion from pack straps, rocks, and climbing gear
- Layering: Accommodates base and midlayers for full winter setups
It’s especially well-suited for alpine climbing, winter hillwalking, ski touring, and remote expeditions where comfort and protection matter most.
Pros and Cons
Pros:
- Outstanding waterproof and windproof performance
- Comfortable and quiet fabric
- Helmet-compatible hood with excellent adjustability
- Ethically and sustainably made
- RECCO® built in
Cons:
- Premium price tag (~£390)
- No powder skirt for resort skiing
- Hood and pocket zips can be tricky with gloves
- Slightly bulky for summer use
Ideal for:
- Winter mountaineering and scrambling
- Ski touring and snow travel
- All-season hillwalking in wet climates
- Eco-conscious adventurers wanting technical gear
Not ideal for:
- Ultralight hikers
- Summer-only users
- Those needing high breathability in hot/humid conditions
Pricing and Availability
| Retailer | Price |
|---|---|
| Patagonia UK | £390 |
| Trekitt | £390 |
| Addnature | £400.99 |
| eBay UK | £125–£250 |
It’s a high-end jacket — but a smart long-term investment for serious outdoor use.
Final Verdict
The Patagonia Women’s Triolet Jacket is an exceptional mountain shell: waterproof, breathable, durable, and ethically made. For climbers, skiers, and hillwalkers who venture out year-round, it’s a powerful layer that’s built to endure and protect.
While the price reflects its premium build, the technical features and sustainability make it more than just a jacket — it’s a statement of performance and responsibility.
