#8 on this list
Headwall Jacket
Outdoor Research
The Outdoor Research Headwall Jacket represents a modern push toward sustainability without abandoning heavy-weather capability. Designed for winter mountaineering, ice climbing, and wet-weather backcountry pursuits, this shell emphasizes dependable defense through an environmentally conscious, fully PFC-free build. Independent testing outlets have highlighted the Headwall as a standout option for climbers looking to move away from legacy fluorinated chemistries. Tipping the scales at 1 pound 1.6 ounces, the Headwall sits on the sturdier end of the spectrum, offering reassuring physical protection against blowing sleet and jagged ice tools. The tailoring prioritizes overhead mobility, allowing climbers to swing ice tools without pulling the jacket hem out from underneath a harness. Feature-wise, it includes deep underarm venting zips, a helmet-compatible halo hood that adjusts cleanly, and ample storage for bulky winter essentials like belay gloves. Because of its burly construction and slightly heavier weight, the Headwall is not the shell you pack away 'just in case' on warm summer hikes. It takes up noticeable space in a pack and feels warm during shoulder-season use, cementing its place as a dedicated cold-weather alpine and winter storm jacket rather than a four-season crossover. **Highlights** - Fully PFC-free waterproof construction tailored for winter use - Burly fabric construction resisting snagging on ice screws and rock - Dynamic Reach underarm patterning prevents hem ride-up - Generous internal and external pockets accommodate winter gloves - Fully adjustable, helmet-compatible halo hood **Watch-outs** - Heavy and bulky at 1 lb 1.6 oz for non-winter pack storage - Can run warm during high-output activity in moderate temperatures
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#9 on this list
Aequilibrium Lite GTX
La Sportiva
The La Sportiva Aequilibrium Lite GTX strips away virtually every non-essential feature to deliver an ultralight emergency storm shell for fast-and-light mountain travel. Tailored specifically for fastpackers, skyrunners, and minimalist alpinists, this jacket weighs an astonishing 6.8 ounces for men and 6.4 ounces for women. Testers have praised it as one of the most packable true Gore-Tex hardshells on the market, shrinking down to the size of an apple. Despite its minimal mass, La Sportiva incorporated Gore-Tex's next-generation ePE Performance membrane. This provides genuine waterproof-breathable storm protection that far exceeds the durability of standard PU-coated emergency rain shells. The jacket features elasticated cuffs, a snug, low-profile hood designed to fit under or over slim climbing helmets, and streamlined seam taping that cuts pack weight down to the absolute bare minimum. The severe weight reduction comes with unavoidable operational compromises. There are no underarm pit zips, pocket storage is reduced to a single chest pocket, and the ultralight face fabric will tear if dragged across sharp rock or forced through dense brush. At roughly $309, it is an exceptional specialized tool for moving fast in the high country, but it cannot substitute for a general-purpose, four-season mountaineering jacket. **Highlights** - Incredibly light at just 6.8 oz (men's) / 6.4 oz (women's) - Next-generation Gore-Tex ePE Performance waterproof-breathable membrane - Packs down tiny, fitting easily into running vests or summit packs - Clean, streamlined tailoring reduces wind drag on ridges - Accessible price point of approximately $309 for Gore-Tex tech **Watch-outs** - Ultra-thin face fabric has very low resistance to sharp rock abrasion - No pit zips and only a single pocket limit utility for winter alpine use
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Specs side by side
| Spec | Headwall Jacket | Aequilibrium Lite GTX |
|---|---|---|
| Maker | Outdoor Research | — |
| Weight | 1 lb 1.6 oz (499 g) | 6.8 oz (men's) / 6.4 oz (women's) |
| Membrane | Fully PFC-free waterproof construction | — |
| Hood Style | Helmet-compatible adjustable halo hood | — |
| Venting | Extended dual-direction pit zips | — |
| Cut | Technical alpine fit with harness clearance | — |
| Waterproof Membrane | — | Gore-Tex ePE Performance |
| MSRP | — | Around $309 |
| Pockets | — | Single zippered chest pocket |
| Ventilation | — | None (no pit zips) |
| Pack Size | — | Compresses to roughly apple size |
What our reviewers liked and didn't
Headwall Jacket
- PFC-free waterproof build provides serious storm defense without toxic chemicals
- Tailored underarm patterning stops the hem from pulling out of a harness
- Heavy-duty exterior fabric withstands rough rock, ice screws, and heavy pack straps
- Spacious external and internal pockets easily fit bulky winter climbing mittens
- Weight of 1 lb 1.6 oz makes it too heavy and bulky for summer or general trail use
- Tends to run hot during aerobic climbs in moderate or mild temperatures
Aequilibrium Lite GTX
- Weighs only 6.8 ounces while offering genuine Gore-Tex storm defense
- Compresses down to the size of an apple for effortless packing
- Advanced ePE membrane offers waterproof-breathable performance without PFAS
- Streamlined, close-fitting cut eliminates excess fabric flap in high winds
- Ultra-thin face fabric is vulnerable to abrasion on rock and brush
- Lacks underarm pit zips for mechanical venting on steep climbs
- Minimalist layout provides only a single chest pocket for gear storage
Prices change constantly — the figure shown is the last verified catalog price, and the buy buttons always go to the current listing.