Mammut Stoney HS Hooded Jacket Review: A Reliable Shell for Cold Ski Days
The Stoney HS Hooded Jacket has been part of my ski setup for years. I used an older orange version for multiple seasons, and now I’m wearing the newer Moss colorway in a Medium.
The updates are noticeable, especially in the fit and material feel, but the overall design remains the same: a well-built waterproof shell made for cold, snowy mountain conditions.
It’s not designed to be the warmest jacket on the mountain. Instead, it’s built to protect you from the elements while letting you control warmth through layering.
Why the Stoney HS Hooded Jacket Works on Snow Days
The Stoney HS sits between a lightweight shell and a heavily insulated ski jacket. It’s designed for skiers who want a dependable outer layer for storm days, colder temperatures, and changing conditions.
You choose your insulation underneath. The Stoney HS handles wind, snow, and moisture on the outside.
What stands out:
- Excellent protection from snow and wind
- Durable fabric without feeling stiff
- Longer hem for additional coverage
- Practical pockets for skiing and touring
- Helmet-compatible hood
- Reliable performance in changing winter weather
It’s the kind of jacket you put on and trust for a full day outside.

Stoney HS Hooded Jacket Fit & Sizing
The Moss Medium fits true to size and gives me enough room for a midlayer or light puffy underneath.
Compared with my older Large version, the Medium feels cleaner and more refined through the upper body while still allowing good mobility.
The cut is slightly tailored, and the hem tapers a bit. If you prefer extra room through the hips or plan to wear thicker layers, sizing up may be the better option.
Overall:
True to size with a comfortable ski fit. Consider sizing up if you want additional layering space.
Stoney HS Hooded Jacket Specs
| Feature | Stoney HS Hooded Jacket |
|---|---|
| Waterproofing | Mammut DRYtechnology™ Pro |
| Breathability | High — designed for active winter use |
| Insulation | None (shell layer) |
| Weight | Durable mid-weight shell |
| Hood | Helmet-compatible and adjustable |
| Pockets | Hand pockets, internal storage, sleeve pass pocket |
| Hem | Adjustable with extended coverage |
| Best Use | Resort skiing, snowy conditions, layering |
What I Like
- Durable fabric with a premium feel
- Helmet-compatible hood that actually works
- Smooth zippers even in cold conditions
- Good ventilation options
- Enough room for layering without bulk
- Reliable protection during storms
- Cleaner fit compared with older versions
What I’d Change
- Slight taper at the hem may not work for everyone
- Not the lightest shell option
- Seasonal colors can be limited
Who Is This Jacket For?
The Mammut Stoney HS Hooded Jacket is a great fit for skiers who:
- Ski in cold and snowy climates
- Want a durable waterproof shell
- Prefer adjusting warmth with layers
- Need helmet-compatible hood coverage
- Want more coverage around the waist and hips
If your setup is:
Base layer → Midlayer → Shell
this jacket fits that system perfectly.
Frequently Asked Questions
Is the Mammut Stoney HS Hooded Jacket worth it?
Yes. After years of use, it has remained one of my most reliable ski shells for cold and snowy conditions.
Is the Mammut Stoney HS Hooded Jacket waterproof?
Yes. The waterproof shell keeps snow and moisture out while maintaining enough breathability for long days on the mountain.
Does the Mammut Stoney HS Hooded Jacket fit true to size?
Yes. It fits true to size with enough room for layers underneath. If you prefer a looser fit or heavier insulation, consider sizing up.
What type of skiing is the Mammut Stoney HS Hooded Jacket best for?
I mainly use it for resort skiing in Colorado, especially on cold days, storm days, and snowy conditions.

