Gear Review: Mammut Stoney HS Ski Jacket – Women's
The ski shell I wear with my Stoney HS pants on powder days, in changing weather, and on windy lift rides that can be brutal without the right gear.
Words by Michele Underwood | Some photos courtesy of Mammut
On the lift in Park City, wearing Mammut gear that blocks wind and keeps me warm on long chair rides.
Why I Picked the Mammut Stoney HS Jacket
I wanted a ski shell that would work for both powder days and those extremely windy long chairlift rides without feeling bulky or stiff. I already had a super warm Mammut ski jacket but I wanted something more versatile, layering up and down.
I was already a fan and had the Stoney HS ski pants—this was just the missing piece. Mammut gear just fits right and moves well. Clean design, solid fabric, nothing overbuilt.
Fit and Features of the Mammut Stoney HS Ski Jacket
The Stoney HS jacket has that wide, freer fit I like—something that lets you move without restriction when skiing. It’s not one of those cropped jackets that sits at the waist—it fits like a true ski shell and still feels good in motion.
The hood fits over a helmet, but you can remove it—which I usually do. It fits true to size and doesn't feel bulky. The underarm zips are easy to open on the lift without having to crack the front zip, which helps regulate temp fast on colder days.
I appreciate the snow skirt and the smart pocket placement—nothing bulky, nothing in the way. The material has just enough stretch that it moves with you when skiing, bending, loading gear—or falling, like we all do sometimes.
How the Mammut Stoney HS Jacket Handles Wind and Weather
My Stoney HS is an older version of the jacket, and its waterproof shell has kept me dry on both wet powder days and sleety Midwest ones. The current Stoney HS uses Mammut DRY Tour with a 15,000 mm water column and 20,000 g/m²/24h breathability.
On cold lift rides, it blocks wind like a champ, especially when zipped up and the hood is up. Paired with a midlayer, I’ve been warm in single-digit temps without overheating on the way down. It's a great all-mountain shell.
Mammut Stoney HS Ski Jacket Facts
All-mountain hardshell ski jacket
Mammut DRY Tour
15,000 mm water column
20,000 g/m²/24h breathability
Windproof
75D x 75D main material
Helmet-compatible adjustable hood
X-vented underarm ventilation
Water-repellent two-way front zipper
Two chest pockets with water-repellent zippers
Zippered sleeve pocket
Internal mesh and zippered pockets
Adjustable cuffs and hem
Detachable elastic snow skirt
Weight: 737 g
What Makes the Stoney HS Jacket a Great Ski Shell
Warm but breathable
Moves well without feeling stiff
Great zip vents and waterproofing
Smart design for lift-access and touring days—excellent wind blocking on chairlifts
Who This Jacket Is Great For
If you want a ski shell that’s weatherproof but not bulky, the Stoney HS jacket pairs perfectly with the Mammut Stoney HS ski pants. It’s excellent for changing weather and anyone who skis in cold or wet conditions.
Pro tip: Mammut drops new colors every season. I have orange from a year ago—not my favorite, but I figured it’d help me stand out (and maybe avoid getting run into).
Final Take: Is the Mammut Stoney HS Jacket Worth It?
I’ve worn this jacket on Midwest groomers and Colorado powder days, and it’s great on both. Sometimes I wear a light jacket under it, sometimes just a wool base layer. Most of the time, once I get going, I heat up fast—that’s when I open the side vents. What I love about this jacket is its flexibility. Like all my Mammut gear, it’s incredibly comfortable. Warm when layered, breathable when moving, and built to last.
Pro tip: Mammut’s seasonal sales go quick—if you see your size, grab it.
Frequently Asked Questions About the Mammut Stoney HS Ski Jacket
Is the Mammut Stoney HS jacket waterproof? Yes. The current Stoney HS has a 15,000 mm water column. My older Stoney HS has also kept me dry through powder, wet snow, and sleety Midwest ski days.
Is the Mammut Stoney HS jacket insulated? No. The Stoney HS is a hardshell ski jacket, which is one reason I like it. I can change what I wear underneath depending on the temperature instead of being locked into one level of insulation.
Is the Mammut Stoney HS jacket warm? The shell itself isn't insulated, but it blocks wind and weather well. I've worn mine in single-digit temperatures with a midlayer underneath and stayed comfortable.
How does the Mammut Stoney HS jacket fit? I like the roomier ski fit because it gives me space to move and layer underneath without feeling bulky or restrictive.
Does the Mammut Stoney HS jacket have ventilation? Yes. It has underarm ventilation zippers, which I use when I start getting warm while skiing.
Can the Mammut Stoney HS hood fit over a ski helmet? Yes. The hood is helmet-compatible. I usually remove mine, but I like having the option when I want more protection from wind and snow.
Is the Mammut Stoney HS jacket worth it? For me, yes. I've worn mine on Midwest groomers and Colorado powder days, and I like that I can adjust my layers and use the same shell through very different ski conditions.
Michele Underwood writes Overland Girl, where she shares the gear she uses on real trips—from the Northwoods of Wisconsin to desert rides in the West. She values quality and craftsmanship and believes in buying less, but buying better. The gear she recommends is gear she uses herself.Some links on Overland Girl may be affiliate links. If you purchase through them, Michele may earn a small commission at no extra cost to you.