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 95 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 provides good protection and comfort at an affordable price. Reviewers praise its lightweight, breathable design, adjustable fit, and durability. While it may not be the most stylish or lightest option, it offers excellent value and functionality for climbing, mountaineering, and other outdoor activities.
AI-generated from the text of customer reviews.
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Selecting an option will reload the available reviews on the pageSeptember 3, 2025
Took some rocks
I took a pretty good amount of rockfall to the head with one of these on. the plastic has some holes in it and the foam inside shattered. I think that is what it is supposed to do. I was a bit concussed after but I'm happy to still be breathing after that. Good helmet, now I need another one!

Originally reviewed on ExpertVoice.com
August 26, 2025
Great all around helmet
Really comfortable, light weight, but it gets the job done. Solid helmet
Originally reviewed on blackdiamondequipment.com
July 21, 2025
Great for the price and fits great
The helmet is pretty comfortable and I don’t get to hit wearing it one thing is it sits a little high on your head so it looks a little funny but I don’t really mind that but functionality it works great and mostly looks great
Originally reviewed on blackdiamondequipment.com
June 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
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
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