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Black Diamond
Momentum AL Harness

Out of Stock  Product Number: 27808

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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.

* This product does not qualify for shipping to all countries.


  • 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
  • For saftey, this product CANNOT be returned

Gender: Unisex
Season: F13
Vendor ProductId: 651053
Review ProductId: 11534


by PowerReviews
Black DiamondMomentum AL Harness

(based on 39 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars




of respondents would recommend this to a friend.


  • Comfortable (4)
  • Simple (4)
  • Durable (3)


    Best Uses

    • Indoor (4)
    • Long climbs (4)
    • Outdoors (4)
      • Sizing:
      • Feels full size too small


        Feels half size too small


        Feels true to size



        (5 reviews)

        Feels half size too big


        Feels full size too big

      • Reviewer Profile:
      • Casual/ recreational (4)

    Reviewed by 39 customers

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    Solid starter harness

    By Michael

    from Philadelphia, PA, USA

    Comments about Black Diamond Momentum AL Harness:

    I've been climbing for about 6 months now. Both bouldering and top rope. This is my first harness. It does everything I could ask and for the price I couldn't beat it. Extra chalk bag and chalk was just a nice added bonus. Pretty solid comfort but only have the gym harnesses to compare too. Overall a really nice buy. I'd recommend it too anyone.


    Each time I've made it to the ground was by choice.

    By Amanda

    from Chicago, IL, USA

    Comments about Black Diamond Momentum AL Harness:

    I think my review summary explains my experience with this harness! Climbed 3 times since purchasing it about a month ago. I'm pleased to announce that I've made it to the ground safely. I will say that being female in a men's harness does have more bunching in the crotch but it personally doesn't bother me enough to complain about it. Overall good comfort in the legs and waist, plus I couldn't beat the price!


    Everything the starting climber needs

    By Matthew

    from Walnut Creek, CA, USA

    Comments about Black Diamond Momentum AL Harness:

    I just recently got back into rock climbing, so I needed the full kit of gear. This was the perfect starter kit, and getting it on sale was the icing on the cake.

    (1 of 1 customers found this review helpful)


    Fantastic first harness

    By John

    from Sudbury, ON, Canada

    Comments about Black Diamond Momentum AL Harness:

    This is my first climbing harness and it is amazing. Great features, very comfortable on the waist and legs, ample space to clip 'biners to - great product at a great value. Always impressed with my BD purchases.


    Excellent, XXL fits larger guy

    By Julie

    from Julie ordered it for Phil--SW Colorado

    Comments about Black Diamond Momentum AL Harness:

    I am a larger guy, and most BD harnesses in XL don't fit, except the Bod Harness. I tried a Bod harness in XL, and this in XXL, and the Momentum just fits and feels better. The gear loops are farther forward than my old Alpine Bod, so they are easier to use.


    Excellent Starter Harness


    from Ontario, Canada

    Comments about Black Diamond Momentum AL Harness:

    This was the first climbing harness I purchased for personal use. Ive climbed indoor and outdoor with my Momentum and ive had zero issues with it in the 2 years of use. I was immediatly drawn to it for 2 reasons, the buckles and comfort. The quick locking waist buckle conveniently eliminates the necessity of doubling back the belts excess through the buckle. The leg loop sliding buckes adjust easily to fit the climbers thighs and can by tightened or loosened off quickly even with gloves on. I think ill be using this one for a while! For size, I wear a LARGE. I am: 6`0`` 190lbs 33`` waist



    By Tim

    from Colorado, USA

    Comments about Black Diamond Momentum AL Harness:

    This is a great package for the beginner & beyond! I've purchased these harnesses for my clients to use on guided climbs and wouldn't you know they come back with the same package of their own the next time. It's simple, comfortable and when I was waiting on my new harness to arrive, I used a momentum for a couple weeks. It was more comfortable than my previous $110 harness of another brand. No complaints about this harness, it's worth every penny. Chalk bag is nice....comes with a chalk ball. Classic carabiner, what more can I say. Buy with confidence.


    Perfect fit for me, budget

    By John

    from Undisclosed

    Comments about Black Diamond Momentum AL Harness:

    My second harness, and I prefer the double back waist belt for reassurance. I love the simplicity and price. The belay loop also seems sturdier than my last harness.


    Best harness out there!

    By Natalie

    from Troy, AL, USA

    Comments about Black Diamond Momentum AL Harness:

    I've had this harness now for a year and a half, and I don't think I'll ever wear another one. I wear my harness daily, whether I'm belaying, climbing, zip lining, or going through high ropes courses. I can go all day wearing my harness and it's as comfortable as can be! I've recommended this harness to many friends, and they love it just as much as I do!


    Great first harness

    By Lachlan

    from Adelaide SA, Australia

    Comments about Black Diamond Momentum AL Harness:

    Bought this harness as my very first harness for climbing. I've used it indoor and outdoor climbing and abseiling. Very comfortable harness although I did occasionally have some discomfort around the legs but this was stopped with some quick and easy adjustments.

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    Do you have questions about this product?

    Get answers from real customers and in-house experts with AnswerBox.

    1 Question | 1 Answer
    Displaying question 1
    • Q:

      in the sizing for the harnesses .... waist size is measurable ... what is to be measured for the "leg" measurement ...??
      Asked on 1/10/2015 by Grammy

      1 answer

      • Staff Reviewer


        Measure around the widest part of the thigh. The leg loops will typically sit above this point, but you need to be able to step into the harness.

        Answered on 1/12/2015 by Jeff from Rock/Creek
    Displaying question 1

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