Black Diamond Momentum SA Harness

Priced: $45.95 - $59.95 Rated:   - 4 stars out of 5 by 36 reviews.
Black Diamond Momentum SA Harness -
Black Diamond SA Climbing Harness Features.

Black Diamond Momentum SA Climbing Harness.
The Black Diamond Momentum SA Climbing Harness is a promising all-around harness for different types of climbers. From the first-time climber to the seasoned hardman, this harress made for efficiency and safety. The patent-pending TrakFIT leg adjustments feature simple slide adjusters along the leg-loop webbing making adjustments quick, worry-free and easy. Experience excellent comfort with its abrasion-resistant nylon, breathable mesh, EVA foam padding, and soft lining materials. Providing you with an expert balance of comfort, ventilation and durability, Dual Core Construction uses two slim bands of high-tensile webbing on the outer edges of the waistbelt and a venting Bullhorn-shaped OpenAir foam insert in the center. This combination provides you with both comfort and breathability without pressure points. It also features an adjustable releasable rear elastic riser, 4-pressure-molded gear loops, and 12kN-rated haul loop. The Black Diamond Momentum SA Harness allows you to tighten or loosen the fit quickly and easily with the new pre-threaded Speed Adjust buckle on the waistbelt and contoured leg loops.
This product can only be shipped to U.S. addresses.

Key Features.


  • TrakFIT leg loop adjustment system uses a simple, secure slide adjuster to quickly and easily adjust the diameter of the leg loop and provide a wide range of fit


  • Abrasion-resistant nylon, breathable mesh, EVA foam padding and a soft lining material create excellent comfort
  • 210d nylon twill + 150d polyester mesh
  • Dual Core Construction uses two slim bands of high-tensile webbing on the outer edges of the waistbelt
  • Bullhorn-shaped waistbelt with Dual Core Construction™ features 2 separate bands of webbing that distribute pressure while allowing great breathability
  • 4 pressure-molded gear loops are reinforced with nylon webbing to provide excellent racking space with high strength
  • 4-way nylon knit
  • Bullhorn-shaped OpenAir waist belt provides both comfort and breathability with Dual Core Construction


  • Venting OpenAir foam insert in the center to balance comfort and breathability without pressure points


  • Slide adjuster along the leg loop's webbing automatically adjusts and promises an incredible range of sizes


  • trakFIT leg adjustments feature simple slide adjusters along the leg-loop webbing; trakFIT is quick and easy to adjust and requires no doubling back


  • Rear elastic straps adjust easily and can be released


  • Patent-pending trakfit adjustment for easy, worry-free adjustability on OpenAir leg loops
  • Black Diamond Momentum SA climbing harness has a rear haul loop that is rated at 12kN
  • An all-around harness for everyone from the first-time climber to the seasoned hardman
  • Harness features a lightweight aluminum Speed Adjust buckle at the waist that is prethreaded for quick and secure 1-handed operation
  • Pre-threaded Speed Adjust waistbelt buckle
  • 12 kN (2,698 lbf) rated haul loops

Adding drive-thru-quick convenience to the Momentum, the Momentum SA Harness by Black Diamond uses new pre-threaded Speed Adjust buckle on the waistbelt and contoured leg loops, allowing you to tighten or loosen the fit in less time than it takes for your partner to put you on belay.

FEATURES of the Black Diamond Momentum SA Harness.
SPECIFICATIONS of the Black Diamond Momentum SA Harness.
Black Diamond's Momentum SA Harness is a comfortable and adjustable climbing harness. Designed to work just as well for beginning climbers as for experts, the Momentum SA is incredibly versatile. The brand's Dual Core Construction provides plenty of ventilation while still remaining comfortable and durable. An open air foam insert and two webbed bands on the outside edge of the waist belt allow the harness to remain breathable without any uncomfortable pressure points. The leg loops are quick and easy to adjust. This harness has four gear loops and weighs in at 340 grams.

Mountain Gear
Versatile and convenient, the Black Diamond Momentum SA harness has pre-threaded Speed Buckles on the waist and legs that don't require doubling back, so making adjustments is simple.

Oregon Mountain Community
The Black Diamond Momentum SA Harness is an all-around harness ensures optimal ventilation with the OpenAir EVA foam insert. The Speed Adjust buckle makes securing yourself a breeze, while the new trakFIT leg loops eliminate buckles.


The all-around Black Diamond Momentum SA climbing harness balances durability, breathability and comfort for sport climbing, multipitch trad routes and glacier ascents.

Weight (see spec chart) is based on size Medium.


Appalachain Outdoors
The Black Diamond Momentum Harness is perfect for the beginner or hard core climber. You get easy adjustability and comfort knowing if you push your limits you'll have a soft catch.
Half-Moon Outfitters
12 kN-rated haul loop
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Review RatingNumber of Reviews
Adjustable leg loops:36 - 39 inches
Belay loop:27 - 30 inches
Droppable leg loops:Yes
Fits waist:Climbing
Gear Loop:yes
Gear Loops:4 pressure-molded gear loops
Harness Class:Rock Climbing
Haul Loop:12 kN-rated haul loop
Leg Loop Type:Adjustable
Leg loop size:30 - 33 inches
Legs:24 x 28" / 61 x 71 cm
Main Buckle Closure:Pre-Threaded
Materials:Nylon, mesh; Aluminum buckles
Padded Waist Belt:Yes
Padded leg loops:33 - 36 inches
Padded waist:Climbing
Waist:36 x 39" / 91 x 99 cm
Waist/Leg Sizes:Pre-threaded SpeedAdjust buckle on waistbelt, Patent-pending trakFIT leg adjustment for easy, worry-free adjustability of OpenAir leg loops
Weight:12 oz / 350 g(Medium)
Compare specifications to related products.

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Black Diamond Momentum SA Harness Reviews:

Positive Reviews:

Best one for me

Im new to the sport but that doesnt mean I cant tell a good product when I see and wear one. I went into REI store with some friends who are seasoned climbers and harness selection is subjective , its what your body likes the best. I tried every harness on in the store and this one was the most comfortable and im clibing 5.10a indoor and its holding up to the abuse so far. When i hung from rei rope in store this harness kept me more upright while the other harnesses had me leaning backward and when you fall or coming down a route I dongt want to be leaning backward forcing me to use my stomach and back muscles to keep me upright.

The size if im correct was one to large but ill have to double check that. I do not have my harness right now but I believe i got a small instead of medium. Im 5'9 145-150lbs, waist 33-34 but i believe i got the small, which has room to expand a inch or two outward.

The leg adjustments are easy to move and so far they have stayed in place but i wish they could be tightened like the waist on the harness but thas not really a problem.

This is a great harness and the price is great. Theres other harnesses twice the price but this one beats them all for me.

Which harness should you get? Whatever one youll use and fits you best, for me its this one
Jpsfirstresponse at REI on 05/05/2012

Great Harness

At my first visit to REI, one of my friends suggested to me to buy my own harness. We found the Momentum. It was reasonably priced (45 after tax) so I decided to go with it. I had no previous knowledge of climbing equipment. I used this harness A LOT this past summer. I used it for belay, rappel, zip line, high ropes, and climbing walls. It performed great! I liked the gear loops a lot. I found that they were useful for things like a radio, water bottle, keys, and other gear. The harness was comfortable if I fell from the high ropes(a fall of about 3-4 feet) or the climbing wall(3-4 feet) or even from the zip line. Very sturdy harness. I didn't get sweaty or anything even after belaying for 3-4 hours. I'm 6'4" and average build, and the large size harness fit me very comfortably.VERY GOOD BUY!
climber bryan at REI on 09/09/2013

Best harness I've used

I'm new to climbing and have been hitting the indoor gym 2-3 times a week since the summer. This harness replaced my Mammut Togir Light that I had started on. Really just wanted something a little more 'sturdy' feeling and comfortable. The Togir would give me a hell of a wedgie and is so thin I'd start thinking about it if I were high up. Not totally knocking the Togir, I had no safety problems with it, but it really is a 'light' harness. A little too light for me.

The Momentum is well built, quite comfortable and has all the normal features you would expect. Unlike the other reviewer it fits my legs quite nicely, and the overall fit is great. Definitely subjective though. I have a 33" waist, and I went for the large since I have extra room for tightening when wearing more layers.
bromanji at REI on 12/12/2011

Great for sport and all-around use

This is a great value for the money. Excellent harness for indoor and sport climbing. I like the speed adjust buckle, makes getting in and out much faster and easier.

Cannot really comment on durability since it was purchased just few months ago, but I dragged it through some chimneys, so far without problems.

It doesn't feel very comfortable to me when sitting in it for longer periods of time (on hanging belays), so I would not really recommend this for big walls

It's light and compact enough that it would probably work for mountaineering, but I prefer my BD Couloir there.

If you're tight on budget, this is a very good all-arounder, but not only that. It is my first choice for indoor and weekends at the local crags
Becquerel at REI on 08/08/2013

Excellent Harness

I got this harness after a recommendation from a friend. For the price, it doesn't get much better. The only complaint I have is that the size medium is just a little too big for my 28 inch waist and the small sized harness was too small.

However, the pros are incredibly numerous. Despite the size problem I have, it's still an incredibly comfortable harness. It's very simple to put on and use and is padded very nicely. The loops on the waist and on the back are also a nice feature that allow for quick access to chalk bags, belay systems, etc.

For the price, this harness is excellent and I can see myself using it for a very long time.
TKerp at REI on 03/03/2013

The Momentum Keeps You Going

This harness is solid as a rock. Easy adjustments, the legs will self adjust essentially because of the elasticity and the waist is essentially a "set-it-and-forget-it" system. I read that it was difficult to get on and off, it's not, at least not any more so than any other harness and why would you want a harness that will come off easily anyway? The back is a little thick which can get pretty hot when the sun's baking down on you. That's the case with mesh though too, ultimately I'd prefer the comfort of the thicker padding rather than unsupportive yet "cooling" mesh. Black Diamond is an awesome company with a great reputation and this harness lives up to their standards.
Tom the Dude at REI on 09/09/2012

Best Value I Have Experienced

At its price point, I would recommend this harness to anyone considering it. I climb 3-5 times a week and had this harness for over a year and ended up retiring it due to sizing before it ever wore out on me.

The leg loops are fool proof and the waist adjustment is easy with the auto-double-backing buckles. The harness weighs marginally more than harnesses that cost almost three times as much.

If you are looking for an "all-around" harness that would fit the needs of a recreational climber, this harness is great.
Grip Shift at REI on 04/04/2013

Great fit, very comfortable

Fits great and very comfortable - I'm roughly a waist size 33-34, and was afraid that the Medium would not fit well. Fortunately, it turned out to be the perfect size. The padding is very comfortable, and I've not had any issues with "breathibility".

The buckles are easy and quick to use, and the harness itself is very light and not obstructive when I boulder.

I can't comment on the durability as I've been using it in indoor gyms for about a month, but it certainly seems like it will hold up.
Henry at Eastern Mountain Sports (EMS) on 12/12/2013

Excellent Harness

I cannot be more satisfied with this harness. At the price point it is a great value. I have a size 30-31 waist and ended up buying a medium which fits well, and has sufficient room in the event my waist expands over time.

The harness is very easy to use and very comfortable. The leg adjustment straps are simple to use and hold tight without issue.

The padding is sufficient and not uncomfortable to hang in - and is also breathable.
SVMoto at REI on 10/10/2012

Good Inexpensive Harness

I used this harness today climbing outside for my first time. I am new to climbing and therefore don't have much to compare this harness to but I can say without question that it is much more comfortable and lightweight than whatever the gym was renting when I went. Since I'm new, I spent plenty of time falling on it and hanging in it trying to figure out the routes. Very pleased with this purchase and it's very inexpensive.
Mglasgow35 at REI on 01/01/2012

Negative Reviews:

Not quite right for me

I am a 5'11" male with a 33-34" waist. I purchased the large version of this harness expecting it to fit perfectly. Unfortunately, the harness would not fit centered. If you center the front loops the back of the harness is off center (to the right). The rear leg straps would also be off center with the strap for the left let being above the right buttock. It is as though the harness was meant to be tightened all the way till both sides of the foam belt are touching/overlapping. I went back to the store to try a XL only to find that it fit basically the same except with not much room to tighten the waist strap.

I suggest you try this harness on in the store, make sure it fits you well and the front and back are symmetrical when wearing. If you are like me, you may need to try another harness.

Other than this one complaint, I can see where this harness would be exceptional should it fit you well.
Blacknight659 at REI on 06/06/2013

Plastic leg buckle broke first day

I spent a lot of time looking for a harness and this one fit me best. However, it doesn't seem like Black Diamond tested the new leg buckle system that they came up with this year and implemented on the majority of their harnesses. The plastic buckle that adjusts the width of the leg loop broke on my very first top rope fall in the gym. It's not a load bearing piece, but if it breaks, then you can no longer adjust the width of the leg loop to your leg. Totally useless. I returned it.
Charles at Eastern Mountain Sports (EMS) on 12/12/2011

Neutral Reviews:

Cheap Starter Harness. not comfortable

I used to have the BD older model, the Momentum AL harness which was a bit bulky but it was definitely comfortable. I purchased the Momentum SA harness when my gear was unfortunately stolen. It was a bit uncomfortable when I first tried in on and hanging on it. I thought that I just had to break it in a little. A little over a year later and I'm still "breaking in" the harness.

I mainly used this harness for single pitch sport routes, and if you are going to use it for that then you will have no problems. I'm in the process of learning proper multi-pitch techniques and anchor building (I eventually will learn to use pro for trad). The pain started when on a hanging belay. This harness is NOT COMFORTABLE ON A HANGING BELAY or just hanging in the harness in general. The waist belt felt as if it were cutting into my sides trying to split me in two. The legs loops were also digging in and was cutting circulation off. I was miserable and it was just a two pitch climb! Black Diamond's older AL model is a significantly much more comfortable harness. If I were to buy a budget harness, I would buy the Momentum AL or another brand of harness.

This harness is best used for sport climbing where you will not be hanging in your harness for extended periods of time. The speed adjust system for your legs is really convenient especially if your letting other people use your harness.

I ended up returning this back to REI and I actually purchased an Arc'teryx R320a harness...."omg" is all i will say. that will be on another review
Brian Climb Stuff at REI on 03/03/2013

Good, but not for me.

I really like all of my other BD gear (and I have quite a bit). But this harness was just not for me. First, it was way too big. I am about a 32 inch waist and the medium felt way too big. Once I got it synched down it was pretty much as tight as it could go and was way to the side. Second, I found that hanging in the harness for any more than a minute became really uncomfortable.

I went to REI and tried on the Petzl and it fit me much better, and I ended up returning this harness for that one.

Overall this didn't seem like a bad product, but if you have a smaller waist for your size, this will probably not work for you. I would, however, suggest this to those with a different body type.
Legendary H at REI on 03/03/2013

Ah well its alright

This harness was rather inexpensive, which is good and bad. Because you get what you pay for. The leg loops are really hard to adjust. The waist belt only adjust on one side so if its too big or too small it will trow the leg loops and gear racks and everything else off center which doesn't really effect much other than how it looks. It is also hard to get on and off, the waist belt has an auto double backer which is nice but it doesn't slide easy so its hard to get on and off.
Jamey the Climber at REI on 11/11/2011

Not strong

Hi. I'm a 15 year old climber.

Using this harness has not been pleasant. I have been climbing for about 3 years now. My third fall on this harness wasn't pleasant, most falls aren't. But I have had harness's that hold when I fall. This harness isn't the best for first time climbers.
Skylimit at REI on 03/03/2012

good not great

great first harness due to the price, but if you start climbing alot you will soon want to upgrade. NOT FOR MULTI-PITCH! very uncomfortable on hanging belays. great for indoor or sport climbing.
jrad4 at REI on 02/02/2013