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Black Diamond
Half Dome Helmet

4.557894736842106 out of 5 stars
95 Reviews
$59.95
Color:Octane

Size:

Size Chart

Quantity


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

What do you think about this product?

Overall Rating

4.5 based on 95 ratings

Review Summary

1 Stars - 2 reviews
2 Stars - 1 reviews
3 Stars - 5 reviews
4 Stars - 21 reviews
5 Stars - 66 reviews

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.
Runs smallTrue to sizeRuns large

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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5 out of 5 stars

September 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!

Blake E
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

August 26, 2025

Great all around helmet

Really comfortable, light weight, but it gets the job done. Solid helmet

Rob P.
blackdiamondequipment.com

Originally reviewed on blackdiamondequipment.com

4 out of 5 stars

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

Jack H.
blackdiamondequipment.com

Originally reviewed on blackdiamondequipment.com

4 out of 5 stars

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.

Finley P.
blackdiamondequipment.com

Originally reviewed on blackdiamondequipment.com

5 out of 5 stars

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

Kyhl W.
blackdiamondequipment.com

Originally reviewed on blackdiamondequipment.com

5 out of 5 stars

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.

user image
Nicholas H.
blackdiamondequipment.com

Originally reviewed on blackdiamondequipment.com

4 out of 5 stars

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.

user image
TRsoloist
5 out of 5 stars

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

Juli
4 out of 5 stars

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.

user image
Bryce P
ExpertVoice.com

Originally reviewed on ExpertVoice.com

4 out of 5 stars

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

Nathan A
ExpertVoice.com

Originally reviewed on ExpertVoice.com

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