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Climb Ski Hiking/Trekking Apparel

Half Dome Helmet

$59.95 USD


Our durable, comfortable and supremely adjustable workhorse, the Half Dome is built for the relentless pursuit of all styles of climbing.
Item# BD620206BDORM_L1
$59.95 USD

In stock



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(Lower 48 US States Only)

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Completely redesigned from the ground up, the Black Diamond Half Dome is the evolution of our most popular climbing helmet. With an improved fit and weight savings of more than 40 grams over the original, the Half Dome is an all-purpose workhorse ideal for everything from trad cragging to alpine expeditions. We also added a custom-designed wheel adjuster for quick, secure and precise adjustments.
  • Hybrid design with molded EPS foam, generous ventilation and highly adjustable suspension system
  • Suspension's custom wheel adjuster allows for improved fine-tuning of fit
  • Headlamp clips are the most secure headlamp attachments on the market
  • Available in 2 sizes
  • The most durable helmet Black Diamond makes

Tech Specs

Weight :  
[S/M] 310 g (11 oz)
[M/L] 340 g (12 oz)
Size Range :  
[S/M] 48 - 57 cm (19 - 22.5 in)
[M/L] 55 - 61.5 cm (22 - 24 in)

Recommended Use


VIDEO PROFILE: BD athlete Patxi Usobiaga multi-pitch climbing in Switzerland's Rätikon

VIDEO PROFILE: BD athlete Conrad Anker ice climbing in Hyalite Canyon, Montana


Rated 4.7 out of 5 by 15 reviewers.
Rated 5 out of 5 by Great Fit I ordered this helmet because it is required for search and rescue. I was surprised by how easy it is to adjust. I had adjusted it to fit directly on my head, but when I got to the training center it was horrible weather with a rain/snow mixture. I was able to quickly adjust the straps to fit over my warm hat and it was comfortable to wear all day. January 19, 2015
Rated 5 out of 5 by Comfortable, lightweight, durable Just an all-around great helmet for the reasons listed above. My hat size is 7 1/2 inches and the M/L fits me perfectly. December 9, 2014
Rated 5 out of 5 by A true work horse I bought this only after switching to those the fancy light weight super-duper helmets. I sat on my fancy one and broke it. So now the light weight foam helmet is saved for when I am really weight conscious, but this is what I use and abuse (although I don't really abuse it). Durable and almost equally light and as comfortable as any other helmet. If you are going to own one helmet, make it this one. November 14, 2014
Rated 5 out of 5 by Perfect for zip lining and GoPro in Costa Rica! Fits very well, adjustable for correct fit under chin. If your head size is right in between SM/ML, go with the bigger helmet for sure. My new wife and I each got one for mounting our GoPro hero 4 black and Cat Eye Volt 300. Perfect set up if you ask me. Very pleased Ps, one slight improvement I'd make (but helmet is great as is) is a thin padded cover over the bottom of the chin strap. With added mouts and weight, strap can cut into me a bit. Offering and optional add on would be awesome. Thank you, helmet is 9/10 and customer service while returning my sm for a ml size went easy as possible, and quick! ... G&A Duoos November 8, 2014
Rated 5 out of 5 by Great update to a classic! Love this helmet, have had three over the years, and this one is light and so comfortable!! August 19, 2014
Rated 4 out of 5 by Great dome! I just wore it for 6 hours yesterday for a caving excursion and loved it. By the end of the trip I was starting to feel pressure on a few points in the helmet, but for most users, you won't be wearing it for that long continuously which is the only reason I give 4 stars. August 16, 2014
Rated 5 out of 5 by Great Product We use these on our via ferrata where we see anywhere from 50 to 150+ customers a day. For the amount of use they get and constant adjustments/resetting they are very durable. The weak points that have surfaced after two years of daily use (May - Sept) seem to be the teeth/gears where the dial adjusts in the back. They tend to deform and get jammed in the dial making it more difficult to adjust. They still adjust, however it is not easy and it only continues to deform the teeth. Let me put this out there as well: this is not a safety issue (ie no cracking of the shell or the harness system failing) It is only an inconvenience if you are constantly readjusting the the dial on a daily basis for months. Luckily BD has resolved all issues we've had. They are very speedy with the assessment/shipping and quick to help. Absolutely no complaints except that we are out a few helmets during the shipping process haha For seeing over 4,000 customers last year and over 3,000 this year so far, I feel that only having a few helmets affected by this issue so far is more than acceptable. August 14, 2014
Rated 4 out of 5 by Excellent product I use these with my scouts. They are more comfortable than other brands because of the adjustable rear strap June 23, 2014
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