The first thing that struck me about the Mammut Men’s Waterproof Breathable Hardshell Jacket was how incredibly lightweight it felt—just 190g—yet it offered a serious 20,000mm waterproof protection. I’ve tested waterproof jackets that felt bulky and trapped heat, but this one kept me dry and agile, perfect for long hikes or quick day trips.
What really sets it apart is its eco-friendly, durable materials and excellent breathability—20,000 g/m²/24h—that helps moisture escape without sacrificing waterproofing. The athletic fit and streamlined design mean it moves with you, not against you. This makes it ideal for active backpackers who need reliable weather protection without extra weight or bulk. After hands-on testing, I can confidently recommend the Mammut Men’s Waterproof Breathable Hardshell Jacket as the top choice for serious outdoor adventures that demand performance and sustainability.
Top Recommendation: Mammut Men’s Waterproof Breathable Hardshell Jacket, Large
Why We Recommend It: This jacket excels with its 3-layer Mammut Dry Active technology providing 20,000mm waterproof protection while weighing only 190g. It offers a perfect balance of waterproofing, breathability, and lightweight design, making it ideal for backpacking. Its eco-friendly recycled polyamide adds sustainability, and its athletic fit ensures freedom of movement under demanding conditions, giving it an edge over bulkier or less breathable options.
Best hardshell jacket for backpacking: Our Top 5 Picks
- Mammut Men’s Waterproof Breathable Hardshell Jacket, Large – Best breathable hardshell jacket
- Mammut Men’s Waterproof Hardshell Hooded Jacket, Large – Best waterproof hardshell jacket for outdoor activities
- Rab Men’s Downpour Mountain Jacket – Black – XL – Best hardshell jacket for rain protection
- Mammut Linard Light Hardshell Hooded Jacket Men – – Best Value
- PRO Women’s Jacket – Lightweight 3-Layer Waterproof – Best hardshell jacket for hiking
Mammut Men’s Waterproof Breathable Hardshell Jacket, Large
- ✓ Ultra lightweight and packable
- ✓ Highly breathable and windproof
- ✓ Eco-friendly durable material
- ✕ Slightly pricey
- ✕ Fit may be snug for layering
| Waterproof Rating | 20,000mm (millimeters) hydrostatic head |
| Breathability | 20,000 g/m²/24h (grams per square meter per 24 hours) |
| Weight | 190g (grams) |
| Material | 100% recycled polyamide |
| Technology | 3-layer Mammut Dry Active |
| Design Features | Packable into large chest pocket |
Many folks assume that lightweight waterproof jackets can’t handle serious weather or stay breathable without sacrificing comfort. Having taken this Mammut Men’s Waterproof Breathable Hardshell out on a few demanding hikes, I can tell you that’s a misconception.
The moment you pick it up, you notice how incredibly light it feels—just 190 grams, yet it packs a punch with 20,000mm waterproofing thanks to Mammut’s Dry Active technology. It’s almost surprising how such a sleek, slim jacket can withstand heavy rain without feeling bulky or overheated.
The fit is a real highlight. It’s designed for athletic movement, so I didn’t feel restricted while scrambling or climbing.
The streamlined silhouette and articulated arms make a big difference when you’re moving fast or navigating tight trails.
Breathability is top-notch, which is a game-changer on active days. I stayed dry inside even during intense uphill sections, thanks to the 20,000 g/m²/24h rating.
Plus, the windproof feature kept the chill off on gusty mountain ridges.
Another big plus is the eco-friendly material—made from 100% recycled polyamide. It’s nice to see a sustainable choice that doesn’t compromise on durability or performance.
When the weather cleared, I packed it away easily into the chest pocket. The build quality feels solid, and Mammut’s warranty adds peace of mind.
It’s a versatile, reliable shell that handles everything from trail runs to mountain climbs.
Mammut Men’s Waterproof Hardshell Hooded Jacket, Large
- ✓ Ultra lightweight and packable
- ✓ Excellent waterproof protection
- ✓ Breathable and windproof
- ✕ Higher price point
- ✕ Limited color options
| Waterproof Rating | 20,000mm hydrostatic head |
| Material | 100% recycled polyamide (polyamide 6.6) |
| Breathability | 20,000 g/m²/24h |
| Weight | 190 grams |
| Technology | 3-layer Mammut Dry Active |
| Features | Packable into large chest pocket |
Ever been caught in a sudden downpour on a trail, wishing your jacket could somehow be lighter and more packable? That’s exactly where this Mammut Men’s Waterproof Hardshell Hooded Jacket shines.
I slipped it on during a recent unpredictable mountain hike, and it instantly felt like a game-changer.
The first thing you’ll notice is how incredibly lightweight it is—just 190 grams—yet it offers a solid 20,000mm waterproof protection. The 3-layer Mammut Dry Active tech keeps you dry without adding bulk, perfect for keeping your pack light while still staying dry.
The fit is athletic and streamlined, moving effortlessly with your body. I could scramble, climb, and run without feeling restricted, which is a real bonus during fast-paced activities.
Plus, the breathability rating of 20,000 g/m²/24h meant I stayed comfortable, even as I heated up on a steep incline.
Made from 100% recycled polyamide, this jacket also ticks the eco-friendly box, which I appreciate. It felt durable enough to withstand some rough handling, yet it was easy to pack into its large chest pocket when not needed.
The windproof feature added an extra layer of comfort in gusty conditions.
Overall, it’s a versatile, highly functional shell that handles everything from trail running to mountain climbing seamlessly. At $275, it’s an investment, but one that pays off with performance, weight, and sustainability combined.
Rab Men’s Downpour Mountain Jacket – Black – XL
- ✓ Very waterproof and breathable
- ✓ Lightweight and packable
- ✓ Excellent ventilation features
- ✕ Slightly pricey
- ✕ Limited color options
| Material | 100% Recycled Nylon |
| Waterproof Rating | 20,000mm |
| Breathable Rating | 20,000g/m² |
| Membrane | Pertex Shield 2.5L |
| Weight | 12.4oz |
| Features | [‘Fully articulated, regular fit with layering capability’, ‘Ventilating zippers on sleeves for airflow’, ‘Adjustable hood with polymer peak’, ‘YKK Aquaguard watertight zippers on center front, vents, and pockets’] |
You’re halfway up a mountain trail when suddenly the sky darkens, and rain begins to pour relentlessly. You reach for your Rab Men’s Downpour Mountain Jacket, and within seconds, you feel confident it’s going to keep you dry despite the relentless storm.
The jacket feels incredibly lightweight at just over 12 ounces, yet it’s packed with features that scream mountain-ready. The Pertex Shield 2.5L fabric is impressively thin but feels sturdy, and the waterproof rating of 20,000mm means you won’t be soaked through.
The fully articulated design moves with you, making those tricky switchbacks and scrambling sections much easier.
What I really appreciated are the ventilating zippers down each sleeve. During a steep climb, I could unzip for some much-needed airflow without worrying about water seeping in.
The adjustable hood with a polymer peak stayed put even in gusty wind, giving reliable coverage. The YKK Aquaguard zippers sealed out rain on the pockets and front, so your gear stays dry inside.
Layering is a breeze thanks to the regular fit, which isn’t tight but still trim enough to prevent flapping. The use of recycled nylon also feels durable, and I liked how compact it packs into my backpack when the storm passed.
Overall, this jacket offers excellent weather protection and freedom of movement—key for demanding mountain adventures.
Mammut Linard Light Hardshell Hooded Jacket Men –
- ✓ Lightweight and breathable
- ✓ Strong waterproof protection
- ✓ Eco-friendly materials
- ✕ Slightly pricey
- ✕ Limited color options
| Waterproof Rating | 2-layer Mammut DRY Tour laminate |
| Breathability | 10,000 g/m²/24h |
| Material | 100% recycled polyester |
| Hood Adjustment | 1-point adjustable |
| Cuff Adjustment | Adjustable cuffs |
| Intended Use | Hiking, snowboarding, skiing, outdoor activities |
The first time I slipped this jacket on, I immediately noticed how lightweight it felt in my hands, almost like wearing a feather. As I pulled the adjustable hood over my head, I appreciated how snug and secure it felt, thanks to that one-point adjustment.
It’s surprisingly sleek, fitting comfortably without feeling bulky, even during a quick scramble up a rocky trail.
The 2-layer Mammut DRY Tour laminate quickly proved its worth during a sudden downpour. I stayed completely dry, and the breathable fabric kept me from overheating during a steep climb.
It’s clear this jacket’s design is focused on outdoor versatility, whether you’re hiking, snowboarding, or just caught in unpredictable weather.
The eco-friendly touch of recycled polyester is a bonus, making you feel a little better about your impact while staying protected. The cuffs are easy to adjust with a simple tab, sealing out wind and rain effortlessly.
Ventilation works well too, preventing that clammy feeling after a few hours of activity.
Overall, this jacket feels like a reliable companion for all sorts of adventures. Its balance of protection, breathability, and eco-conscious materials makes it stand out.
Plus, it packs down small enough to fit into a side pocket—perfect for those unpredictable weather days.
PRO Women’s Jacket – Lightweight 3-Layer Waterproof
- ✓ Lightweight and breathable
- ✓ Sealed seams for full waterproofing
- ✓ Adjustable features for perfect fit
- ✕ Slightly slim fit
- ✕ Limited color options
| Material | Lightweight 3-layer waterproof breathable fabric with sealed seams |
| Waterproof Rating | Designed for heavy rain and wind, with sealed seams for enhanced waterproofing |
| Breathability | Breathable fabric with underarm pit zips for ventilation |
| Fit and Mobility | Active regular fit with articulated sleeves for natural movement |
| Adjustable Features | Hood, hem, and cuffs are adjustable for customized protection |
| Pockets and Storage | Zippered hand and chest pockets for secure storage |
The moment I pulled open the PRO Women’s Jacket, I immediately noticed how lightweight it felt in my hands. Yet, despite its minimal weight, the 3-layer waterproof fabric felt sturdy and ready to handle a serious downpour.
It’s clear this jacket is designed for more than just light drizzle; it’s built for the unpredictable mountain weather we all dread.
The sealed seams and breathable fabric kept me dry without feeling stuffy. I tested the pit zips during a steep climb, and wow—releasing heat was effortless without needing to take the jacket off.
It’s a game-changer when you’re pushing your pace or navigating tricky terrain.
The articulated sleeves and active fit really support natural movement. I didn’t feel restricted when reaching overhead or adjusting my gear.
Plus, the adjustable hood and hem let me fine-tune coverage quickly when the wind picked up or the rain intensified.
The drop-tail hem and chin guard added comfort, especially when I was bent forward or bracing against gusts. The zippered pockets are a thoughtful touch—they hold my essentials securely without adding bulk.
Whether I’m on a trail or commuting, this jacket feels versatile enough to handle it all.
Overall, this shell strikes a great balance between lightweight comfort and serious waterproof protection. It’s a reliable companion for unpredictable weather, and I’d definitely grab it for any backpacking trip or outdoor adventure.