Petzl Sirocco Climbing Helmet
Made for climbers and mountaineers, this Petzl helmet offers comfort and protection. It's lower in the back for greater coverage. At only 170 g, it's perfect for long days.




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- Hybrid design features an expanded polypropylene (EPP) foam shell and a rigid crown injected with expanded polystyrene (EPS) foam
- Designed in accordance with the Petzl Top and Side Protection label; designed for optimal protection against impacts to the side, front and rear
- Helmet brim is reduced in the front to be invisible to the user and offer an open, unobstructed field of view
- Minimalist buckle and adjustable webbing for increased comfort and lighter weight
- Headband and chinstrap webbing are fully adjustable
- Low-profile buckle locks in place to help keep the chinstrap from loosening unintentionally
- In addition to ventilation holes, the interior foam and liner feature integrated air channels for better air circulation
- 2 front clips and rear elastic band for securing a headlamp to the helmet
- Certification(s): CE EN 12492, UIAA
- Note: This helmet does not meet the requirements of the EN 18100: 2024 standard for ski mountaineering helmets
Imported.
Best Use | Climbing Mountaineering |
---|---|
Helmet Style | Climb |
Helmet Construction | Hybrid |
Shell Material | Shell: expanded polypropylene; rigid crown: expanded polystyrene |
Head Circumference | S/M: 19-23 inches M/L: 21-24 inches |
Vents | 24 |
Visor/Brim | No |
Weight | 6 ounces |
Gender | Unisex |
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Sold on the Sirocco!
Have owned a few different climbing helmets over the years, from hardshell to foam, with each having their pros and cons. I think the Sirocco is by far the best helmet I have ever owned. The EPP foam used throughout this helmet feels much sturdier than my old EPS foam helmet. The patch of polycarbonate shell on top is a nice improvement over the previous version of this helmet. I bought the black one and was a little leery it might be hot, but I just got back from a week of climbing in fairly warm temps (80s) and bright sun and it was totally fine. The venting is amazing, it is super comfortable and lightweight. I have kind of a large noggin and the larger size is a perfect fit for me.
Superlight and Extremely Comfortable
This helmet is so light that you hardly notice it on your head. The foam is surprisingly durable for how light it is but I would recommend being careful when putting it inside a pack. It still has plastic on the top of the dome and all other features you could want, even a magnetic assist in the buckle. The suspension of the helmet is all nylon webbing and a few plastic buckles instead of the usual plastic frame you find on most helmets. This is not quite as easy to adjust on the go but is much more comfortable against your head. I can wear this helmet for a full day of climbing with zero pressure points or anything weird. No other helmet I have tried for any other sport is this comfortable.
Try the helmet in your local REI store first !!!!
The helmet is super lightweight but runs narrow if compared to the black diamond vapor line. If you are like me and are new to climbing and mountaineering world please keep in mind that any helmet that leaves the store will be destroyed when you return it (simply for safety reason. They want to guarantee that the helmet is in 100% new condition for every customer). I am an idiot who knows nothing about these type of safety measures. I purchased the helmet online and directly sent it to my apartment. After I received the package, I immediately realized that even in M/L, it was way too narrow for me. I returned it the next day. REI is kind enough to accept it but they are going to destroy that helmet, which probably spend less than 30s on my head. I felt so bad for REI. Leaving this review here so that hopefully more people will know there are these type of safety measures. Maybe REI could put out some warning messages to better inform customers when they attempt to purchase helmet or other climbing gears through the website If the REI website shows the helmet you want is not in stock in your local REI store then (1) check if your local REI store carries any other helmet manufactured by the same company/brand. The fit should be similar (2) purchase online but deliver the helmet to your local REI store and do the fitting in the store. If you dont like the fit simply return it there. the helmet will not be destroyed because it never leaves the store.
Lightweight and breathable!
As a climber, ski mountaineer, and professional mountain guide, this helmet is perfect for light and fast missions. Highly breathable, super-lightweight, and cool looking, this helmet is so easy to wear, you almost forget you're wearing it! A headlamp attaches easily to the outer clips and bungee strap on the back of the helmet. While the chin buckle is fast and easy to fasten even with gloves on, the magnets grab little pebbles and if not inspected, can cause the chin buckle to disengage. However, if you pay attention to where you lay your helmet down and keep the magnets away from tiny rock particles and sand, you can avoid this problem. The lightweight head strapping system is comfortable and I'm still getting used to it, but I have noticed that if not perfectly tightened, the helmet will slip around on your head. Overall, I'm super impressed with the Sirocco helmet and have found it more pleasant to wear than many other helmets I've worn over the years.
Exceptional performance for a lightweight helmet
We use this helmet as our team helmet for guides at Pisgah Climbing School in NC. Compared to past foam and hardshell helmets I've used in the past, this is head and shoulders above in quality and performance. It's so lightweight that I've had no neck strain using it, even in 15 hour days where I'm constantly looking around and assessing hazards. The head protection is also phenomenal for protection from tree branches/rocks in search and rescue or top-managed guiding, or taking lead falls on low angle terrain where I've had glancing blows on the sides. I was initially concerned about durability, but I've stuffed this into my 45L pack where it got compressed from above and below by gear with no noticeable wear other than scratches on the orange plastic from my cams. Compared to heavier helmets in the past, I can keep this on all day and forget I have it on, which encourages the user to be safer at the crag, especially in areas with potential rockfall.
Junk that can't take any punishment
This helmet lasted literally one alpine route in RMNP before it broke. Never had a flimsier brain bucket. Not worth $10, let alone $150. Buy a different helmet.
Lightweight and comfortable
The helmet is very comfortable and lightweight. The adjustment system is a little slower than your standard rachet or dial systems, but does allow a good fit. Like many others I forgot I was wearing it after awhile. The foam used in the majority of the helmet seams robust and like it will hold up, but time will tell. The magnetic clip is unnecessary and isn't any better than a standard clip. Slightly disappointing that REI is promoting the updated version of the helmet on their site, but I still got the older version. Not a huge deal though since this version meets my needs.
love it
Super comfy and light weight. some would think that it being mostly Styrofoam it wouldn't protect your head, but it does. the straps hold really well and the magnetic clip is fun to mess with. i have yet to pinch my fingers in the clip. most helmets I've used give me pressure headaches, this one doesn't..
Super lightweight; Comfortable
Comfortable. Lightweight makes one forget that you're even wearing a helmet. I used black duct tape to cover all of the vents, as they are a magnet for wind driven snow and moisture accumulation.
Weird narrow fit
S/M was very snug and narrow, just did fit my head. But with even a thin beanie, it was too small. M/L was just too big. Kind of weird dimensions. If it fits your head, then you may be in luck.