Why We Like The Mammut Haute Route Helmet
Mammut's Haute Route Helmet can do it all. Whether we're chasing backcountry powder, scaling rockfaces, or pedaling on tarmac, this helmet is certified to boost our safety. No matter how we're getting our adrenaline fix, the internal air channels are keeping us chill, while the elastic straps offer to secure our goggles or headlamp. On long approaches to alpine routes, we appreciate the hybrid construction keeping the weight low without sacrificing durability. And on cold midwinter resort days, we're thankful for the included beanie that slips comfortably inside and the large front vents that keep our goggles from fogging up.
Details
- Triple-certified helmet for skiing, climbing, and cycling
- Hybrid construction is lightweight and hardwearing
- 360-degree dial adjustment system gives a secure fit
- Large front air vents and internal air channels help keep you cool
- Helmet-compatible beanie included to shield your ears from the cold
- Elastic straps and front clips secure goggles or a headlamp
- Item #MAMU5XL
- Shell Material
- ABS
- Impact Management
- EPP, EPS
- Ventilation
- front vents, internal air channels
- Fit Adjustment
- 360° dial
- Visor
- slight brim
- Certifications
- CE EN 1077, CE EN 12492, CE EN 1078, ISMF (International Ski Mountaineering Federation) racing approved
- Claimed Weight
- 12.3oz
- Activity
- skiing, mountaineering, climbing, road cycling
- Manufacturer Warranty
- limited 2 year
Reviews
Q&A
What do you think about this product?
Overall Rating
2.5 based on 2 ratings
Review Summary
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Selecting an option will reload the available reviews on the pageMay 13, 2025
Massive sizing - like the overall shape
Circumference is 59cm so I went with L because I know mammut's sizing is a bit small for its stated size usually...This helmet is HUGE. Sizing seems a bit off from the rest of Mammut's line. Word to the wise, try on before you buy...

Originally reviewed on ExpertVoice.com
December 4, 2024
I’m sure it’s a great helmet…
I already own a Mammut climbing helmet that fits somewhat large. I’m a 58 cm head circumference and already own the medium version of the Mammut climbing helmet. Thinking the sizing should be spot on I ordered the 55-59 cm size of this helmet. I couldn’t even get it on my head all the way. I don’t understand why the sizing would be so off.

Originally reviewed on ExpertVoice.com
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