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Black Diamond Momentum Kids Full Body Rock Climbing Harness

Curated from 81 real Reddit conversations

Refreshed on: February 27, 2025

Black Diamond Momentum Kids Full Body Rock Climbing Harness

Brand: Black Diamond
Price: $74
Snoop Score:
3.7
Sentiment
5.5
Popularity
2.4
Technical
3.9

Snoop's Take

The BLACK DIAMOND Momentum Kids Full Body Rock Climbing Harness is designed specifically for young climbers, offering a safe and comfortable experience as they learn the ropes of climbing. Made by the renowned Black Diamond brand, this harness features easily adjustable straps and a high tie-in point to keep kids upright while they climb. Consumer feedback highlights the harness's comfort and adjustability, making it a great choice for gym climbing and top roping. As one user noted, "I like it, and it is comfy as hell," while another emphasized its suitability for beginners saying, "It’s a solid choice." However, some concerns were raised regarding sizing, particularly for younger climbers, with one parent mentioning that the harness was too big for their 4-year-old. Overall, the BLACK DIAMOND Momentum Kids Full Body Rock Climbing Harness is recommended for its intended use, especially for kids transitioning into climbing, although potential buyers should carefully consider sizing to ensure a proper fit.

Not for you? Check out our other rated Harnesses

Black Diamond Solution is the best gym harness I've found so far.

Positive Feedback

Another Black Diamond recall I am loosing faith and trust in the company more and more.

Negative Feedback
Product
3.7
Black Diamond Momentum Kids Full Body Rock Climbing Harness
Rock Climbing
1 / 10
Tree Climbing & Arborist Work
3 / 10
Fall Protection & Rescue
5 / 10
Mountaineering & Rappelling
3 / 10
See how this compares to all Harnesses

What it does well!

Key strengths users can’t stop talking about.
Comfortable for gym climbing
Black Diamond Solution is the best gym harness I've found so far.
It's designed for sport climbing. I use it for trad but I prefer a gear sling and just use the gear loops for draws, so it works for me.
Good for top roping in the gym
Whatever is most cost effective for you!
Good job BD. will definitely continue to buy loads of gear from you guys!
Preference for sizing up for comfort
If I gain even the tiniest bit of weight I would not be able to get the smaller one on.
Comfortable and adjustable for kids
Is there really any significant difference between a cheaper vs a more expensive model?
First thing, you can totally top rope outdoors.
Comfortable for climbing
I like it, and it is comfy as hell.
That Bod harness with just enough tail to be safe.
Comfortable for beginners
Ended up getting the M so I can wear more clothes beneath for outdoor climbing or just potential weight again ☺️
Adjustable fit for varying sizes
It’s a solid choice.
Good for small kids transitioning to climbing harnesses
I have three kids who all started at about 2. They all started in a full body, but be warned they pinch, tip back and are generally very uncomfortable for them.

Where it needs some work!

Areas to watch—feedback on possible improvements.
Trust issues due to recalls
Another Black Diamond recall I am loosing faith and trust in the company more and more.
I appreciate a company sounding the alarm after just one failure. I’d much prefer this to saying nothing.
I wonder if by "heavily used" they mean "heavily abraded." My harnesses (not BD; I like BD, but not their harnesses) usually die due to leg loop abrasion, but I'm kinda curious how this one failed.
Plastic buckles can break
Trying on is a must! I also recommend a harness with metal buckles or no buckles like the Petzl Selena.
Harness lifespan recommendations
ALL harnesses disintegrate after 10 years, you MUST retire it immediately.
Climbers tend to use harnesses way too long.
I was told this by my lead climbing instructor when he was going over the general safety practices of climbing.
Not comfortable for all day multi-pitching
IMHO, the momentum is not a comfortable harness for all day multi pitching, and I'd love to see a pic of your quad rack on a solution ;)
I personally don't find it comfortable for long days on the wall.
Uncomfortable for extended wear
the back is not comfortable and feels like I have a rope on my back
If your primary concern is comfort for extended time in the harness, check out harnesses made for big-wall climbing and they are usually more plush.
Leg loops can be too tight
The BD harnesses do not fit me at all because the leg loops are too tight.
Too big for smaller children
The BD momentum was to big for my 4 y.o.

Compare On All Talked About Dimensions

Product NameImagePriceScoreCompareSee DetailsBuy Now
KAILAS Airo Harness for Rock Climbing and Ice ClimbingKAILAS Airo Harness for Rock Climbing and Ice Climbing$56
7.7
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X XBEN Climbing Harness - Safety Gear for Rock ClimbingX XBEN Climbing Harness - Safety Gear for Rock Climbing$34
7.6
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Black Diamond Womens Momentum Rock Climbing HarnessBlack Diamond Womens Momentum Rock Climbing Harness$59
6.6
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BLACK DIAMOND Men's Momentum Rock Climbing HarnessBLACK DIAMOND Men's Momentum Rock Climbing Harness$59
6.5
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PETZL CORAX Harness for ClimbingPETZL CORAX Harness for Climbing$79
6.5
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TT TRSMIMA Safety Harness Fall Protection KitTT TRSMIMA Safety Harness Fall Protection Kit$56
6.0
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Mammut 4 Slide Climbing HarnessMammut 4 Slide Climbing Harness$64
6.0
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SOB Full Body Climbing HarnessSOB Full Body Climbing Harness$105
5.6
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SOB Climbing Harness - Half Body Tree Climbing Safety HarnessSOB Climbing Harness - Half Body Tree Climbing Safety Harness$64
5.3
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X XBEN Thicken Climbing HarnessX XBEN Thicken Climbing Harness$37
4.8
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NewDoar Climbing Harness - Half Body Harness for Rock ClimbingNewDoar Climbing Harness - Half Body Harness for Rock Climbing$46
4.7
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Black Diamond Men's Momentum Rock Climbing HarnessBlack Diamond Men's Momentum Rock Climbing Harness$89
4.4
DetailsBuy
Black Diamond Momentum Kids Full Body Rock Climbing HarnessBlack Diamond Momentum Kids Full Body Rock Climbing Harness$74
3.7
DetailsBuy
TRSMIMA Safety Harness Climbing BeltTRSMIMA Safety Harness Climbing Belt$27
3.3
DetailsBuy
BLACK DIAMOND Equipment Solution Harness - Men'sBLACK DIAMOND Equipment Solution Harness - Men's$49
2.2
DetailsBuy

Core Power Plays

The specs and strengths that make it shine.
Discussion on potential profit from recalled harnesses
BD Vision harnesses for sale on Amazone for like $50 right now.
Discussion on the age of harness models
When did Black Diamond stop making the Momentum Al harnesses? I found one and it looks brand new but from what I searched it could be over 14 years old.
This harness is old (especially with that stripped webbing) and I don't think any conscientious retailer would sell it on the liability issue alone.
Black Diamond Harness Acid Test
Discussion on gear loop sizes for different climbing types
The only thing it's not good for is trad climbing because the gear loops are too small.
General discussion on recommendations for kids' climbing harnesses
I have a petite 4.5 yo and I am leaning towards with the PETZL Ouistiti or the Black Diamond Momentum Harness but wanted to gather a little intel before committing.

Buyer’s Cheat Sheet

What to check before you click ‘Add to Cart.’
Fit dependency of harnesses
Fit really varies by brand and style.
I suggest hanging for a few minutes and seeing how you feel to really assess a harness.
Discussion on harness sizing nuances
My waist is around a 25-26 and the XS was def harder to get up over my behind and up to my waist but fit once it was on.
I like that I can put extra layers on under it for climbing outdoors.
I have to tighten the waist all the way but that’s fine and I prefer having a little space in the thighs.
I’ve had my harness for years and I’m glad I sized up.
Discussion about cost vs comfort in harnesses
With harness, there's 3 different variables and you get to pick two.
Another aspect may be features, as in number of gear-loops, the option to install extra clips for ic
Importance of trying on harness for fit
I will be going to a store to try some out so I can see if the fit is good.
Find a shop where you can try hanging on the harness in addition with just trying it on.
be aware that many stores only carry harnesses in the "medium" size, but that the brand often sells "small" sizes as well.
General advice on investing in a good harness
Unless you get a good one off the bat, you'll be hanging in discomfort for a looooong time.
Climbing harnesses vary by use and fit
Best advice would be to see what he is planning on using it for.
Not sure what he climbs? Petzl Sama.
Discussion about finding the right harness for comfort
I love my Petzl sitta and also my arcteryx harness. But you’re better off going to an outfitter and trying on a harness till you find one that’s comfortable for you
Depending on how long you're sitting, you might wanna invest in a belay seat, like a fabric one. In general for herness, the wider the material the more comfortable.
Which model you're currently have? That will help determine what might be a better option
Difficulty in finding well-fitting harnesses
Currently I am using the DMM trance harness in xxs which fits ok but not great.
I HATE it when I can’t pull a harness tight enough on my waist, a rack will leave big bruises on my hipbones.
I have it and hate it. Not a big deal for indoor where I don’t have anything other than a belay device and some lead tags, infuriating outside.
Sadly no retailers in my state (kinda surprising tbh) but I appreciate the list! I will have to be on the lookout when we go on a trip.
Importance of trying on for fit
I don’t want the straps to cut into my thigh when I fall, but I also don’t want it to fit very loosely on the waist.

Cautionary Callouts

Know the pitfalls before they catch you off guard.
Concerns about product safety
The reported failed harness story was shared on MP weeks ago. Really weird stuff
Double backing requirement for safety
It has “DANGER” printed in red on the buckle that is only covered if it’s double backed.
Inquiry about harness wear and tear
New harness belay loop? Safe or unsafe? Black Diamond Solution New to sport climbing, been lead/ top roping for the past month at least 4 times a week.
Yikes! My guess is that this occurred from a single event rather than from any kind of wear and tear, the frayed bits seem to have a clean cut on them.
I would try to figure out what caused this before climbing in a new harness.
Have you ever used an auto belay? I've seen a TrueBlue auto belay do the same thing to a harness.

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