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Rock warriors know that climbing can be a black hole for hard-earned cash, but that's not the case with the Black Diamond Momentum AL Harness. Designed for versatile climbing and great value, the Momentum AL features trakFIT adjustable leg loops for that exact fit whether you're climbing sandstone in shorts or ice in snowpants.

  • Generous padding allows comfort during long project sessions or hanging belays
  • Bullhorn-shaped waist offers a more ergonomic fit
  • Ample gear loops hold anything from a few 'biners to a full sport rack
  • Reviews
  • Q & A

What do you think about this product?

Have questions about this product?

Comfort, price, functionality...

  • Familiarity: I've put it through the wringer

Wow. What can I say? This harness is seriously the bee's knees. I've used it in the gym three days a week for months now, and I've recently used it outside on real rock- and I can tell you one thing, this harness is an amazing value! It's very comfortable, the price is right, and it functions perfectly. I've noticed no stretching at all, and the amazing part is that I've noticed no real wear and tear yet (I am also very careful with my harness, which probably has a lot to do with it).

I highly recommend it.

I have attached a picture of myself using this harness.

Comfort, price, functionality...

Great harness.

  • Familiarity: I've used it once or twice and have initial impressions

I got a size Medium and i had to tighten it down all the way to fit my 30 inch waist but is very comfortable, has lots of gear loop's and is fairly easy on and off.

love it!

Ok Harness but returned

  • Familiarity: I've used it several times

I returned the Harness not for the quality but because it was difficult to put on and take off since it did not have a quick synch option for easy tightening and loosing.

Lots of use

This thing has seen lots of use and is nearing the end of it's life.

Replace your harness like you replace your rope.

Jared D.

Expert Gearhead

800.409.4502 ext 4055

Lots of use


Everyone's idea of when to retire a rope or harness can be a bit different. I have a climbing partner that uses a harness that has a few parts that look very worn and past what I'd consider to be "safe."

Others feel that a harness should be retired as often as a rope. So if you take a bunch of huge falls on a harness, maybe it's time to retire it.

For me, I like to factor in a number of things.

1- How many falls have I taken in the harness?
2- How long have I owned the harness?
3- Is there visible wear and tear?
4- Does the harness show signs of UV damage?
5- How do the bar tacks and other stitching look?
6- What type of fluids are in contact with the harness? Water? Sweat?

For this particular harness, I was given it as a gift I think back in 2012? I climbed a few times in 2012 and 2013 and then took up climbing 2014 and was climbing 3-5 times a week all summer long. I've taken a few falls in it and it shows a little visual wear.

Here is a article from 2014:

Hope this helps and let me know if you want to talk more!

Jared D.
Expert Gearhead
800.409.4502 ext 4055

Great Harness!

  • Familiarity: I've put it through the wringer

Great harness, great price, lots of gear loops, love the leg adjusters! I am super happy that it came with a free chalk bag as well! Ill need be getting a second one to take friends out climbing on real rock! My second BD harness, they make quality products at good prices!

Great mileage harness

  • Familiarity: I've put it through the wringer

I work as a climbing instructor and have been using this harness for 2 years now as my go to. This harness doesn't exactly excel at anything but it is a very well rounded product, which makes it a great beginner harness. The quality is top notch, if you take proper care of it. Using it multiple times a week for two years, nothing has frayed showed signs of fatigue or dangerous wear. I recommend this product!

Does the job.

  • Familiarity: I've used it several times

As far as climbing gear goes, Black Diamond is a trusted brand. Safety is key, and it does the job. I bought the AL when my last harness didn't seem snug enough. This one is, but it's a pain to tighten (why I knocked a few stars off). Once I spend the 20 minutes to get it just right, I leave it on until we're done for the day because of this. For Black Diamond gear, it's affordable and worth it, but I regret not spending a bit more for a more convenient harness.

Black Diamond Momentum AL Harness

  • Familiarity: I've put it through the wringer

If you are getting into climbing and don't want to spend a fortune then this guy is for you. The best thing is that its cheap and comfortable. Having used rented harnesses before - basically seat belt material at best - and taking a few good drops from a good height, it pays to have something protecting your crutch. This is a decent harness and you can hang for a short while, as you plan your route. Best for the money

First harness purchased, still happy

  • Familiarity: I've put it through the wringer

I have not purchased other harnesses, so I have little to compare this to (previous to this one, I was using a gym rental harness a buddy had procured from, well, a gym). But it works great for me for gym, sport, trad, mountaineering, etc. I've used it on multi sport routes, and I feel the gear loops are sufficient to accommodate a decent amount of pro. I've recently worn it a few times for some ski mountaineering routes, and while in the long term, I would prefer something lighter that packs down better, this harness still did fine in my rather small pack.

For sizing, I went with a large, although I was fatter then. Now that I've dropped down to around a 32 in waist, I wish I was in the Medium. The Large still fits for the most part, although I am nearly maxed out with the belt strap. And the leg straps, even when fully tightened, did not fit that tight. I've seen other reviews mention the leg straps not being sized that well, although its not a deal breaker.

Great harness for a great value!

Great for beginners or advanced climbers

  • Familiarity: I've put it through the wringer

I have used several different Black Diamond harnesses, and it is hard to beat this one on price and quality. The harness itself is easy to tighten on the waist and leg loops. I have taken a few 30 foot falls on this harness. On each whipper the harness has kept me comfortable and safe. I have personally used it for sport and trad climbing. Although it gets the job done with trad, ideally this harness should be used for top rope and sport climbing. This is for those that don't want to blow a lot of money but also don't wish to compromise on quality.

Great for beginners or advanced climbers

Just big enough

  • Familiarity: I've used it once or twice and have initial impressions

When I bought this I wore a 32 size pant and the small was just big enough. I mean I only had maybe and inch of slack on the waist adjustment. I have since lost a bunch of weight and it fits perfect. I am a 120lbs women and with a 28 waist and its just right. Had I stayed 130 with a 32 waist i would have returned and got a size bigger just for comforts sake. The harness itself seems pretty durable and will be seeing a lot more action in warmer weather!

Cheap and Comfortable

  • Familiarity: I've put it through the wringer

This is BD's basic, all-around harness. For reference, I have a 33" waist, and a medium is almost too big. Next time I'll try a few different sizes and brands; this was just too good a deal to pass up.

The Good:

--Very affordable; I've never seen it go for more than $50

--Well padded, far more so than their alpine harnesses

--Reasonably sized gear loops and a haul loop in the back

The Bad:

--Leg loops (at least on mine) are a bit finicky to resize. It appears that newer models have addressed that.

This was the first harness I ever bought (in 2011) and it's still going strong. It's comfy, the gear loops are big enough for long sport routes, and it catches me when I fall. What more could I ask for?

Cheap and versatile

  • Familiarity: I've put it through the wringer

I bought this as a gym harness, but it works just as well in sport or trad settings. It never impedes movement, and it is comfortable when taking whippers or giving a hanging belay.

I've used it aggressively for 3 years with no sign of wear. I'm retiring it (since all soft goods should be swapped out every few years) and buying the same one again!

Buy this harness.

  • Familiarity: I've put it through the wringer

If you're a climber, you've heard the saying: if you don't know the history of your gear, don't climb on it. However, when I started getting into climbing, I didn't put much thought into this rule. I found this harness at a used gear shop and it looked to be in good condition, so I bought it. That fateful day was years ago, and I'm still climbing on this harness. I use it almost everyday, and take whippers on it weekly.

I was slightly worried about the age and amount of use that I've put into this harness, so I took it in to get it inspected. It passed with flying colors! No signs of wear on the straps, all gear loops in tact, and the buckles work as smoothly as any harness I've worn. To top it off, it's comfy.

Seriously, what more could you want?

I want to order this harness but I wanted...

I want to order this harness but I wanted some feedback on sizing first. I usually wear 31-32" waist pants. The chart would suggest a medium but a review here mentioned the medium being almost too big for a 33" waist. Never bought a harness before. Any responses will be greatly appreciated!

You may notice that the vast majority of comments and reviews here make no mention of the Black Diamond Momentum AL Harness being oversized. That doesn't mean the review you read was incorrect, but that person's experience appears to be in the minority. I have a 31" waist and have used a recent model of this harness very comfortably and safely in medium. I would definitely suggest a medium for you.