Black Diamond Momentum AL

Priced: $37.95 - $45.99 Rated:   - 5 stars out of 5 by 42 reviews.
Black Diamond Momentum AL -

"The Black Diamond Momentum AL Harness was my first climbing harness, so and it has a special place in my right ventricle. It is perfect for just starting out in the gym and getting days on the rock. The Momentum AL has the right amount of adjustability to work over a few layers or with stripped down workout clothing, and the waist band is wide and cushy enough that it wont dig into you sides so your 10th route will be just as comfy as the first. Plus with four gear loops you can carry enough of a rack to tackle longer trad routes."

"I was a pure beginner climber last year and have typically been doing only indoor climbing, and I could not have asked for a better starter harness. If you are a beginner and on a budget, the Black Diamond Momentum AL Harness is a great buy. I know it is totally comfortable because I've had tons of dyno falls and it catches me perfectly every time and does not hurt the legs at all. The Momentum includes a carrying net which is nice, and the standard gray color let me go crazy with color when picking out a new chalk bag. I am about 5'9"ish and weigh in at around 150, so I got a medium and it fits perfectly. It even provides enough room to comfortably handle some post thanksgiving pounds. All in all the Momentum is comfortable, lightweight, and available at a great price!"

Bringing all-season versatility to the Momentum, the Momentum AL by Black Diamond is designed with adjustable leg loops that let you add layers or adjust fit on the fly-perfect for ice climbing, multi-pitch routes or seasonal drift in waistline.

FEATURES of the Black Diamond Momentum AL Harness.
SPECIFICATIONS of the Black Diamond Momentum AL Harness.


  • 4-way nylon knit
  • 210d nylon twill + 150d polyester mesh


  • Bullhorn-shaped waist offers a more ergonomic fit
  • Patent-pending trakFIT leg loop adjustment which uses a simple, secure slide adjuster to quickly and easily adjust the diameter of the leg loop and provide a wide range of fit


  • Generous padding allows comfort during long project sessions or hanging belays


  • Bullhorn-shaped OpenAir waistbelt built with Dual Core Construction which uses two slim bands of high-tensile webbing on the outer edges of the waistbelt and a venting OpenAir foam insert in the center to offer breathable, lightweight comfort without pressure points


  • Adjustable, releasable rear elastic riser
  • Clearance Harness - Old Model*
  • The Momentum AL utilizes a traditional waistbelt buckle and the trakFIT leg loop adjustment system
  • Always read and understand the warnings and instructions that accompany your gear.**
  • For saftey, this product CANNOT be returned
  • Patent-pending trakFit adjustment for easy, worry-free customization of OpenAir leg loops
  • 12 kN-rated haul loop
  • 4 pressure-molded gear loops
  • Ample gear loops hold anything from a few 'biners to a full sport rack
Black Diamond Momentum AL Climbing Harness Features.

Black Diamond Momentum AL Climbing Harness.
Enjoy your climbing a lot more with this Black Diamond Momentum AL Climbing Harness. This amazing climbing harness has been engineered with a bullhorn-shaped OpenAir waist belt that has been built with Dual Core Construction, so that it is strong enough for your tough climbing demands. Its patent-pending trakFIT leg loops are fully adjustable for a proper fit and so that you feel sure about yourself as you keep climbing. The rear elastic-riser is also adjustable for even better comfort and safety. It has 4 pressure-molded gear loops and 12 kN-rated haul loop to help you perform better. This excellent climbing harness comes with 4 clipper slots that you can use to conveniently put your gear on. Plus, its Traditional, fold-back waistbelt buckle ensures that you are buckled in safely in order to avoid any possible mishaps. Have fun climbing with this Black Diamond Momentum AL Climbing Harness.
This product can only be shipped to U.S. addresses.

Key Features.

Rock/Creek Outfitters

Black Diamond's Momentum AL Harness gives climbers of any discipline the same comfort, ventilation and durability that Black Diamond harnesses are known for, at a price fit for dirtbags and new climbers alike. Black Diamond's designers outfitted the Momentum AL with a traditional waistbelt buckle and trakFIT leg loop adjustment system, which uses a simple, secure slide adjuster to quickly and easily adjust the diameter of the leg loop and provide a wide range of fit. The waistbelt is built with our Dual Core Construction, which uses two slim bands of high-tensile webbing on the outer edges of the waistbelt and a venting OpenAir foam insert in the center to offer breathable, lightweight comfort without pressure points.
The Black Diamond Momentum Harness is a great all around harness at an unbeatable price.
TrakFit leg loops make the legs easy to adjust.
AL traditional waistbelt buckle for secure adjustment.
Dual core construction spreads pressure across the waistband with 2 slim bands of high-tensile webbing on the outside edges and an open, ventilated foam insert in the center for unbeatable comfort.
Bullhorn-shaped waistbelt wraps comfortably around your hips.
Adjustable, releasable elastic risers on the leg looks.
4 pressure molded gear loops are perfect for racking climbing gear but lay flat under a pack.
a 12 kN rated haul loop for trailing a second rope while big wall climbing, or a handy place to carabiner a chalk bag.
"This climbing harness has it all: comfort, great gear loops, sleek design, full strength trail line loop and beefy belay loop" - SuperTopo Gear Review.
The Black Diamond Momentum AL is the best climbing harness for the money - perfect for beginners and advanced climbers alike.
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.

Oregon Mountain Community
The Black Diamond Momentum AL Harness has been redesigned to bring you the ultimate balance of lightweight performance, comfort, and durability. The Black Diamond Momentum AL Harness boasts the new trakFIT leg adjustment system.

Al's Sports
The Black Diamond Momemtum AL Harness brings all-season versatility to the Momentum, the Momentum AL is designed with adjustable leg loops that let you add layers or adjust fit on the fly├╣perfect for ice climbing, multi-pitch routes or seasonal drift in waistline.
Appalachain Outdoors
Black Diamond revised their Momentum AL Climbing Harness this year. The new design features an Open-Air waistbelt and leg loops that offer incredible comfort and safety.
Mountain Gear
You stay comfortable without sacrificing weight in the Momentum AL harness by Black Diamond. Top 25 Category Product
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Average Price History: Price History
Review RatingNumber of Reviews
Adjustable Leg Loops:Yes
Available Color(s):Cool Gray
Belay Loop:Yes
COLOR(S):Slate or Tequila Gold
Fits Waist:S-XXL
Gear Loop:yes
Gear Loops:4
Harness Class:Rock Climbing
Haul Loop:yes
Leg:S - 18-22 in
Leg Loop Size:Adjustable
Leg Loop Type:Adjustable
Legs:26 x 30" / 66 x 76 cm
Main Buckle Closure:Double-Back
Padded Leg Loops:Yes
Padded Waist Belt:Yes
Waist:40 x 45" / 100 x 114 cm
Weight:380 g, 13 oz (size medium)
Compare specifications to related products.

Black Diamond Momentum AL Reviews:

Positive Reviews:

Took this harness out to the crag right after I got it and after my first outing in it, I am pleased to say I am relieved to have a decent harness finally. I bought this one to replace a sketchy looking budget Camp harness which was uncomfortable and more than a little worrisome.
This harness is perfectly comfortable, and fits like a glove. I had zero issues when loading the harness with my own weight on the wall, and I took some decent sized whippers and felt as cool as a cucumber. Adjusting the waist is a little cumbersome, but feels super secure afterwards. Not to many straps to get tangled in. 4 gear loops was a huge bonus. People have complained about the padding, which I have no idea where thats coming from. I barely noticed the tension of the straps on my legs and waist due to the significant padding around them. Belaying all day at the crag was not uncomfortable either.
Basically a bomber harness, for a killer price. I will keep coming back to this one for sure.

Tim Cheneval at on 08/05/2013

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?

Kristin Rector at on 12/02/2013

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?

Michael Nies at on 12/25/2013

This harness is safe and comfy. It is a great harness that will not be outdated as the climber reaches new levels. The adjustable leg loops are a must for anyone that climbs year round and want snug leg loops but want to be able to layer. The gear loops are sturdy, well placed and have a capacity that allow for multipitch trad climbing. Aside from safety, comfort is one of the most important aspects of a good harness and this is a good harness. One drawback is that it is a little heavier than some other harnesses out there but if you are that concerned about weight, cut your hair and you may make up the weight difference for much cheaper. Great buy.

Danny M H at on 10/13/2013


I was looking for a solid harness at a reasonable price to go to a nearby rock gym several nights per week. One of the climbing instructors from my local EMS recommended this harness, commenting that it's the harness they use at the EMS Climbing School. That's all I needed to know; I went home and ordered it that afternoon. (It was off-season so the store only had limited quantity on hand, and no Medium sizes, which is what I needed.)

I've used the harness at least a dozen times already. It's super comfortable. I've only used it indoors so far, but plan to do some outdoor climbing with it this year.

No complaints whatsoever. Great harness, great price.
Troy at Eastern Mountain Sports (EMS) on 03/03/2013

A great harness to start with

When I first moved to the southwest, my goal was to start rock climbing. After trying on several harnesses, the price and fit of the Momentum AL won me over. Let's face it: climbing gear isn't cheap, but we can't afford to put our lives on the line for something poorly made. Still, the Momentum AL gives you padding where you need it, has a reasonable number of gear loops, and won't weigh you down. I've used this in the gym and outside, and despite owning other harnesses, this is still my go-to harness. If you're just starting out or simply don't need the fancy tech, the Momentum is a great way to go.
Jessica at on 10/10/2010

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 and it kept me comfortable and safe on each one. I have personally used it for both sport and trad climbing. Although it gets the job don with trad, ideally this harness should be used for top rope and sport climbing. This harness is for those that don't want to blow a lot of money but also don't want to compromise on quality.

Grant Burton at on 01/25/2014

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!

Kat Wiltsee at on 01/07/2014


If your purchasing your first harness im sure your wondering if expense means quality or if speed adjust is what you need. This harness though lacking speed adjust is fully equipped with anything a intense climber and begginer need alike. Youll forget your wearing it! OTher expensive harnesses such as the petzl adjama or the BD focus sa are honestly wastes of your money. This harness can compete with equal demand and costs much less. Id strongly recommend this to any climber of any ability.
Foreclimber at Rock/Creek Outfitters on 02/02/2009

Great price, great performance

Got this harness while on sale since my first harness was too big. I wasn't expecting much, but this harness was really comfortable. The waist can be difficult to adjust along with the elastic running to the legs. I went outdoor climbing for the first time and I was happy that this is comfortable to hang around it.

I've only tried top roping so far, but I hope to start lead climbing soon. I'm sure this harness will perform great in most environments.
Oscar at Eastern Mountain Sports (EMS) on 06/06/2012

Neutral Reviews:

Returned due to design change.

I was looking for a good all around harness (something for rock climbing, ice climbing, and mountaineering). The old style of the AL had buckles on the leg loops that could be completely undone so that the harness could be put on while standing up and one would not have to stick a heavy boot/crampon combination through. The new style has some patent pending adjusters that won't work for my purposes. Several of the staff at my local EMS recommended the Petzl Corax as a good all-arounder. As soon as they have it in stock at my local store, that's what I'll be purchasing. Other than that, I own many and am a big fan of BD products. This is a nice harness at a nice price if you are just starting out.
Hikeoholic. at Eastern Mountain Sports (EMS) on 03/03/2012

try it on before you order

I'm 6' and 150 lbs, the Med was too small and there was not enough adjustment on the leg straps on the large. I thought the price and service were great unfortunately I had to return both.
Paul at Eastern Mountain Sports (EMS) on 12/12/2011