Momentum AL
Description
The Momentum AL 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. We outfitted the Momentum AL with a traditional waistbelt buckle and our 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.
Traditional, fold-back waistbelt buckle
Bullhorn-shaped OpenAir waistbelt built with Dual Core Construction
Patent-pending trakFIT leg loop adjustment for easy, worry-free adjustability of OpenAir leg loops
Adjustable, releasable rear elastic riser
4 pressure-molded gear loops
12 kN-rated haul loop
Retail price
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Weight (g) WeightIn grams, the weight, as stated by the manufacturer/brand. If there are differences in weight (due to multiple sizes or optional accessories) we'll list them here. The default weight is the middle-most size, often this is size M. | 410 g |
| Fit | Unisex |
| Sizes | S, M, L, XL, XXL |
Gear LoopsNumber of Gear LoopsGear loops are used to hold gear (quickdraws, cams, etc) onto your harness. 4 gear loops is most common. 
0 - 1 Gear LoopsMost often on full body harnesses or guide/gym style harnesses. 2-3 Gear LoopsMostly found on lighter harnesses made for [ski] mountaineering or high-end sport climbing where weight is a high priority. 4 - 5 Gear LoopsThe standard/most common number for climbing harnesses. Perfect for sport and trad. More Than 6 Gear LoopsDesigned for long multi-pitch and big wall climbing, found on harnesses made to hold the maximum amount of gear. Worth ConsideringOccasionally, the number of gear loops will change on a harness model depending on the size. There could be 7 gear loops for the med/large but only 5 gear loops for the xsmall/small. In this case we list the highest number for the filters, and then write an explanation on the product page like, “Size S/XS can only fit 5 gear loops.” | 4 Gear loops |
Ice Clip SlotsIce Clip SlotIce clipper slots are made to fit a carabiner that holds ice screws. These slots are generally only used by ice climbers but there is no disadvantage to having them on your harness. 
Less than 40% of harnesses will have ice clipper slots. And those harnesses will usually have 2 or 4 slots, often located next to, or between, the gear loops. | No, 0 |
| Belay / Tie-In | One Loop |
| Waist Buckle Type | Manual Doubleback |
| Leg Buckle Type | Quick Adjust |
| Drop Seat | Yes |
Haul LoopHaul LoopTrad climbers often look for a haul loop as they're intended to haul a rope (second line) or pack (while you climb the chimney). 
A haul loop can also hold shoes or other accessories. Although not the intended use, it is also commonly used to hold a chalk bag. | Yes (12kN) |
| Certification | |
| Size Chart | S
M
L
XL
XXL |
No reviews yet.
The bottom line is that the Momentum AL harness is an excellent all-purpose, lightweight, comfortable, easy to use harness for a very affordable price.  I could probably sleep in it and feel sexy.
With sculpted, compression-molded padding, the Momentum AL maintains its shape, one of the attributes I most appreciated. When you take the harness out of your pack, it isn’t all twisted up and you can quickly discern the right from left leg loop. I found the leg loops and swami supple and while hanging for hours on end, I didn’t notice any pressure points.
For a one-harness-does-it-all model, I give the Momentum two thumbs up. If you prefer the convenience of single-pass speed buckles, that feature is available on the same harness, the Momentum SA. Women can check out their version of the Momentum, the Primrose AL.
Performance: For trad routes in Joshua Tree, California, and sport missions in Maple Canyon and American Fork, Utah, this addition to the Momentum lineup has proven to be a comfortable and versatile harness with a few upgrades. Black Diamond redesigned the Speed Adjust buckles—which had little issues with slipping in prior testing—by shrinking the space for the webbing to pass through just enough so that the buckles bite firmly without being difficult to tighten and loosen. “I was impressed with the durability,” one western states tester said. “After more than six months of testing, including some burl-fest chimneys, it showed no signs of wear.” Open-hook seat attachments made it easy to drop trou when nature called, and full waist and leg adjustability was ideal for conditions and climbing from hot to cold. “Sport, gym, or trad, the Momentum 3S has
been pure joy thanks to the comfortable webbing and foam insert construction,” one tester said. “Not to mention it’s a steal at $60.” Four pressure-molded gear loops were big enough for every route that wasn’t a big wall, but it maintains an airy weight at 13 oz., so it’s packable and doesn’t add bulk to any gear-intensive backcountry pursuits.
Cons: Sizing seemed small on this model (and other Black Diamond models), so try on before buying or size up with plans to cinch down. Word of caution for short people: Gear loops hang draws and other pro extra-low.
Conclusion: Full adjustability and do-everything design make this nearly perfect for everything on rock. It’s also the least expensive harness in the review, and one of the cheapest on the market.
Introducing 2015 new harnesses.
This video explains all the features and benefits of Momentum and Primrose Harnesses.
No voice but very informative video for the Momentum SA, Primrose SA, Momentum AL and Primrose AL Harness users.