Mammut Stoney HS Pants Review: A Reliable Shell for Cold Ski Days
I’ve worn the Stoney HS Pants alongside the Stoney HS Hooded Jacket for multiple seasons, and together they’ve become one of the most reliable outerwear systems I own for skiing in cold, snowy conditions.
The pants are built as a shell layer—designed to block wind and snow while allowing you to control warmth through base layers. Last season, I sized down and picked up a black pair. The materials stayed the same, but the fit felt better, showing how Mammut continues to refine the design.
They’re not designed to be trendy or ultra-light. They’re built to perform.

Why the Stoney HS Pants Work on Snow Days
The Mammut Stoney HS Pants are designed for skiers who spend long days on the mountain and need reliable protection through changing conditions.
They sit between lightweight shells and insulated ski pants, offering a good balance of protection, durability, and mobility.
What stands out:
- Strong protection from snow and wind
- Durable fabric that handles chairlifts, edges, and packed snow
- Comfortable fit with good mobility
- Effective ventilation for temperature control
- Reliable performance in cold conditions
Once they’re on, they simply work. You don’t spend the day adjusting them or thinking about them.
Stoney HS Pants Fit & Sizing
The Stoney HS Pants fit true to size, with enough room for layering underneath. The cut is slightly tailored but still comfortable when skiing, bending, or moving around the mountain.
They sit securely at the waist and provide enough room through the thighs and knees without feeling restrictive.
If you prefer thicker base layers or a roomier fit, sizing up can provide additional space.
Overall:
A functional ski fit that works well with layers.
| Feature | Stoney HS Pants |
|---|---|
| Waterproofing | Mammut DRYtechnology™ Pro |
| Breathability | High — designed for active winter use |
| Insulation | None (shell layer) |
| Weight | Durable mid-weight |
| Vents | Zip vents for temperature control |
| Pockets | Secure hand pockets |
| Waist | Adjustable |
| Best Use | Resort skiing, snowy conditions, layering |
What I Like About the Stoney HS Pants
- Durable fabric that handles repeated use
- Good mobility without unnecessary bulk
- Ventilation that helps regulate temperature
- Clean fit with different base layers
- Reliable protection during snow and storms
- Pairs perfectly with the Stoney HS Jacket
What I’d Change
- Not the lightest option for skiers focused on minimizing weight
- Limited color choices depending on the season
Who The Stoney HS Pants Are Best For
The Stoney HS Pants are a great choice for skiers who:
- Ski in cold and snowy environments
- Want a durable shell pant
- Prefer adjusting warmth through layering
- Value reliability over ultralight weight
- Want a matching jacket and pant system
If your setup is:
Base layer → Shell pants
these fit that approach very well.

Pair Them With the Stoney HS Hooded Jacket
If you want a complete shell system, the Stoney HS Pants pair naturally with the Stoney HS Hooded Jacket.
I’ve used them together for multiple seasons, and the fit, coverage, and weather protection work well as a complete setup.
requently Asked Questions
Are the Mammut Stoney HS Pants worth it?
Yes. They offer reliable protection, durability, and comfort for long ski days in cold conditions.
Are the Mammut Stoney HS Pants waterproof?
Yes. They use Mammut’s hard-shell construction to help keep snow and moisture out while maintaining breathability.
Do the Mammut Stoney HS Pants fit true to size?
Yes. They provide enough room for base layers while maintaining a comfortable skiing fit.
What type of skiing are the Mammut Stoney HS Pants best for?
They’re ideal for resort skiing, especially in cold and snowy conditions, but they also work well for other winter mountain activities.
