Mammut Stoney HS Pants Review: Ski Pants for Cold, Snowy Days
Words by Michele Underwood | Photos by Michele and courtesy of Mammut
Wearing the Stoney HS Hooded Jacket and Stoney HS Pants together on a snowy ski day.
I’ve worn the Stoney HS Pants alongside the Stoney HS Hooded Jacket for multiple seasons, and together they make one of the most reliable outerwear systems I own for skiing in cold, snowy conditions. Like the jacket, the pants are built as a shell—designed to block weather, move well, and let you control warmth through layering. Last season, I sized down and picked up a black pair. Same pants, same materials, but the fit is better, demonstrating how Mammut continues to refine the design over time.
They’re not trying to be trendy or ultra-light. They’re built to work.
Why the Stoney HS Pants Work on Snow Days
Mammut Stoney HS Pants in black.
The Stoney HS Pants are made for people who ski regularly and want pants that hold up through long days, changing weather, and variable snow conditions. They sit comfortably between lightweight shells and fully insulated ski pants.
What stands out right away is how balanced they feel: protective without being bulky, structured without feeling stiff.
What stands out:
Strong protection from snow and wind
Durable fabric that holds up to chairlifts, edges, and packed snow
Clean, functional cut that moves well
Vents that actually help regulate temperature
Consistent performance in cold, snowy conditions
Once they’re on, they disappear in the best way—you don’t spend the day adjusting or thinking about them.
Stoney HS Pants Fit & Sizing
The Stoney HS Pants fit true to size with enough room to layer underneath. The cut is slightly tailored but still comfortable in motion, whether hiking to a lift or skiing full days at the resort.
They sit well at the waist and don’t feel restrictive through the thighs or knees, even when bending, skating, or climbing.
If you plan to wear thicker base layers or prefer a looser feel, sizing up gives a bit more room without throwing off the overall fit.
In short:
True to size with a clean, functional fit that works well with layers.
Feature | Stoney HS Pants | ------------- ----------------------------------------------------- | Waterproofing | Mammut DRYtechnology™ Pro | Breathability | High — built for active winter use | Insulation | None (shell layer) | Weight | Durable mid-weight | Vents | Zip vents for temperature control | Pockets | Secure hand pockets | Waist | Adjustable | Intended Use | Resort skiing, backcountry layering, snowy conditions |
What I Like About Stoney HS Pants
Durable fabric that handles repeated use
Good range of motion without excess bulk
Venting that helps manage heat on warmer laps
Clean fit that works with different base layers
Reliable protection in stormy, snowy weather
Easy pairing with the Stoney HS Jacket
What I’d Change
Not the lightest option if you’re counting grams
Limited color options depending on the season
Who The Stoney HS Pants Fit Best
The Stoney HS Pants are a solid choice for people who:
Ski in cold, snowy climates
Want shell pants that block wind and snow
Prefer to control warmth with base layers
Value durability over ultralight design
Want pants that pair cleanly with a matching jacket
If your setup is base layer → shell pants, these fit that system well.
Pair the Stoney HS Pants With the Stoney HS Hooded Jacket
If you’re building a complete shell system, the Stoney HS Pants pair naturally with the Stoney HS Hooded Jacket. I’ve worn them together for multiple seasons, and the fit, coverage, and weather protection work seamlessly as a set.
Price
Mammut Stoney HS Pants: typically $300–$400
(Seasonal colors and availability vary.)
Take a Look at the Stoney HS Pants
Michele Underwood writes Overland Girl, where she shares gear she uses on real trips—from the Northwoods of Wisconsin to the Ozarks. She values quality and craftsmanship in everything she buys—from outdoor gear to everyday clothes and furniture. Her choices may seem expensive to some, but she believes in buying less and buying better. Longevity matters, both in terms of function and style. Her couch is five years old and still sold at Design Within Reach—that's the kind of timelessness she looks for. Some of the links in this review are affiliate links, which means she may earn a small commission if you buy through them. It doesn’t cost you anything extra, and it helps support her work. She only recommends gear she’d bring herself.
