Half Dome Helmet
Hopefully you'll start climbing Half Dome around sunrise, because if you don't you'll definitely finish climbing after sunset. Either way, the Black Diamond Half Dome Helmet has headlamp clips as well as safety features. This helmet is Black Diamond's original, updated for more ventilation and a lower weight.
Details
- Black Diamond's staple helmet for climbing sport and trad
- Co-molded foam with low-profile, lightweight polycarbonate shell
- One-handed adjustment dial with adjustable chin strap
- Clips for headlamp
- Item #BLD00Z9
- Shell Material
- polycarbonate
- Ventilation
- 11 vents
- Fit Adjustment
- dial
- Certifications
- CE/EN, UIAA
- Claimed Weight
- [small/medium] 11.6oz, [medum/large] 12.3oz
- Manufacturer Warranty
- 1 year
Reviews
Q&A
What do you think about this product?
Overall Rating
4.5 based on 92 ratings
Review Summary
Fits True To Size
Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.Customer Images
Here's what customers have to say
The helmet is described as comfortable, lightweight, and well-ventilated, with good adjustability to fit a range of head sizes. Many reviewers say it has provided reliable protection, though some find it scratches easily. While not the most stylish or lightest, it offers good value and functionality for the price. Overall, it is recommended as a solid, no-frills helmet that meets the needs of new and experienced users.
AI-generated from the text of customer reviews.
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Selecting an option will reload the available reviews on the pageJune 20, 2025
Pretty Goof
Get's the job done, not as comfortable as the petzl helmet I have, as in I have to tighten the dial a little more than I'd like for the helmet to feel secure. The chin strap is easy to adjust, and I like the dial in the back. Also, the pale blue color is really nice.
Originally reviewed on blackdiamondequipment.com
June 16, 2025
light and very adjustable fit.
light and very adjustable fit. Wore it while it was raining one day and was afraid my head would get wet through the holes but twas all gucci
Originally reviewed on blackdiamondequipment.com
June 7, 2025
The classic essential
The half dome, when I think of climbing outside it’s paired with those crazy senders with no helmet and the even crazier senders with helmets. When you have a helmet you push harder and feel safer. The half dome is the perfect example of a balanced helmet. Light and sturdy. Comfortable and good looking. Paired with an affordable price, this classic helmet will be ready for whatever adventure you go to next. Highly recommend.
Originally reviewed on blackdiamondequipment.com
May 16, 2025
Solid, basic brain bucket
- Familiarity:
- I've used it several times
- Size Bought:
- Large
Fits well, is adjustable and good price/quality for an “entry level” helmet. There are definitely better, lighter, more breathable helmets out there but can’t really beat the price of the BD half dome.
May 11, 2025
Good relation quality/price
- Familiarity:
- I've used it several times
- Size Bought:
- S/M
Gods option if you don’t want to spend too much and still get reliable protection
March 20, 2025
A Great Helmet
I have taken this thing everywhere, I love the light weight feel that makes me feel protected nonetheless. Definitely doesn't have all the features that the higher end helmets have but the boa in the back tightens to my head just fine, it has enough ventilation for me to hike with it on when doing scrambles and I take it climbing all the time.

Originally reviewed on ExpertVoice.com
February 12, 2025
Great overall helmet
Not the most light weight and has a few snag points but it just depends on what type of climbing you’re doing

Originally reviewed on ExpertVoice.com
September 22, 2024
Great helmet for the cost
- Familiarity:
- I've used it once or twice and have initial impressions
Used this helmet to hike Black Tusk in British Columbia. The fit was good. Chin strap was a little annoying, but that is any helmet.
January 31, 2024
Reliable
I guess you can always go lighter and more comfortable, but I often forget its up on my head. It just does the trick. The twist-adjuster is a huge time saver. Though I think that's probably a standard on everything now, IDK.

Originally reviewed on ExpertVoice.com
October 26, 2023
Good basic climbing helmet, with limitations
This is a good basic climbing helmet. I use it primarily as a low-cost search and rescue helmet. I do notice, however, that the cradle easily becomes dislodged from the shell. The helmet also tends to slip some on contact. These are safety concerns, and should be kept in mind while making a purchase decision.

Originally reviewed on ExpertVoice.com
Do you have a question about this product?
May 24, 2020
Do the vents open and close for use in the rain or hot and cool days? Thank you
Reproductive Harm - P65Warnings.ca.gov