Momentum Harness - Kids'
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Momentum Harness
The kids' version of the Momentum has the same features that Black Diamond's adult harnesses have. Its Dual Core construction separates a single strand of webbing to ridge above and below hipbones for a secure fit without much weight, and OpenAir foam cushions the waist with breathable comfort. The self-locking Speed Adjust waist buckle tightens in a cinch while the adjustable leg loops keep it snug—and it even has gear loops so your young crusher can keep track of their mini-rack.
Details
- Fully featured kids' harness for the next generation
- Dual Core construction is lightweight and supportive
- OpenAir foam balances between cushy comfort and ventilation
- Self-locking waist buckle makes getting ready a breeze
- TrakFit leg loop adjustments grow with your kiddo
- Item #BLDZ97C
- Material
- Dual Core Construction
- Padding
- OpenAir Foam
- Buckles
- [waist] Speed Adjust
- Gear Loops
- 2
- Claimed Weight
- 8.5oz
- Leg Loops
- adjustable, trakFit
- Manufacturer Warranty
- 1 year
Reviews
Q&A
What do you think about this product?
Overall Rating
5 based on 30 ratings
Review Summary
Fits Small
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 Black Diamond Kids' Momentum Harness is a well-designed and comfortable harness suitable for a wide range of ages, from around 4 to 11 years old. Many reviewers noted it is easy to use, with adjustable leg loops and waist straps that allow a snug and secure fit. The harness is durable and well-made, holding up well to regular use. However, some reviewers found the sizing to be tricky, with the harness running small for some children. Overall, the consensus is that this is a great option for kids starting to climb, with many praising its comfort, safety, and durability.
AI-generated from the text of customer reviews.
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Selecting an option will reload the available reviews on the pageJune 1, 2025
Perfect Progression Harness
The kids had the full body harness to share and we needed to get individual harnesses for a canyoneering trip. They performed very well and should be with them until they get close to teenage years. They love having the gear loop to hang draws and other things even though they aren’t yet leading and just doing top rope.
Originally reviewed on blackdiamondequipment.com
May 13, 2025
For 4 y/o and up
Bought it for my son who is around 40 pounds. Tightened all the way it is just tight enough for him to start sending it and still be able to grow into it
Originally reviewed on blackdiamondequipment.com
March 17, 2025
Great harness
My kids love their harness. They have a great time and don’t complain at all about the comfort or the way it fits.
Originally reviewed on blackdiamondequipment.com
January 19, 2025
Does not fit my 2-year-old daughter
Does not fit my 2-year-old daughter, barely got her in it and it's way too big. She is 27 months old and 25 lb for reference. The momentum harness kids full body does fit her though. I bought both to test them she will eventually grow into it.
Originally reviewed on blackdiamondequipment.com
December 20, 2024
I have three of these,
I have three of these, for my daughters age 5, 7, and 9. Fits well, simple, does the job, and lightweight. What more could you ask for?
Originally reviewed on blackdiamondequipment.com
December 2, 2024
Easy to use
The harness was easy to use on multiple of my kids given its one-size design. It fits my 6 year old up to my 11 year old. The harness is comfortable and not too expensive.
Originally reviewed on blackdiamondequipment.com
July 22, 2024
Great
Fits great and the kids have no issues with it. Easy to tighten and whatnot.
Originally reviewed on blackdiamondequipment.com
June 29, 2024
Toddler size!
- Familiarity:
- I gave it as a gift but have feedback to share
This harness is great. It's comfortable, functional, gear loops are accessible. But please note that this harness is for toddlers. My 50lb, average-sized 6-year-old barely fits in it.
November 28, 2023
Tough little harness
Gets the job done well for my kids. Easy leg tighten

Originally reviewed on ExpertVoice.com
November 19, 2023
great fit
Kids just got into climbing and found this harness has the best fit for him. He love it
Originally reviewed on blackdiamondequipment.com
Do you have a question about this product?
February 9, 2021
What is the range of adjustment on the waist strap? Trying to get an idea of how long this harness will last for a 7 year old before needing to upgrade.
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