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Black Diamond designed its Momentum Dual Speed Harness to keep you comfortable whether you're a beginner at the gym or an expert on a moderate multipitch. Its Dual Core Construction consists of two bands of webbing that split around the waist in order to allow maximum breathability and weight reduction without any pressure points. Black Diamond also slid OpenAir EVA foam padding and an abrasion-resistant mesh panel between the nylon shell to optimize the harness's comfort and durability. Two Forged Speed Adjust buckles have raised side rails that help prevent abrasions from the webbing, upturned baseplates that allow an easier lift for loosening, and a rear kick down on the top plates that eliminates any slippage while you climb.

The Momentum also features TrakFit slide adjusters that cinch across your legs securely and simply without the need of bulky buckles. You can either adjust or release the elastic rear riser for an ideal fit and optional drop-seat use. Four pressure-molded gear loops give you plenty of space for quickdraws and cams, and its haul loop is rated at 12 kN in order to ensure you can bring what you need on long climbs.

  • Dual Core Construction
  • Dual Forged Speed Adjust buckles
  • TrakFit leg loop adjustments
  • Adjustable, releasable rear elastic riser
  • OpenAir EVA foam padding
  • Four pressure-molded gear loops
  • 12 kN-rated haul loop

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Here's what others have to say...

Im right on the fence when it comes to sizing, I have 30 in waist with 23 in legs, according to the chart either one should fit but Im not sure if I should opt for the xs/m or the L/XL, what do you think?


For your waist and leg measurements I'd recommend the XS/M.

Jared D.

Expert Gearhead



Great, affordable harness

  • Familiarity:I've put it through the wringer

Was able to pick this harness up with a coupon and got it for just over $50 and it has been great so far. I really like the leg adjustment system as well as the dual front buckles to keep the loop centered. I'm not a trad climber so I don't know how to rate the gear loops but they seem to be solid with plenty of space. Really comfortable to wear while climbing and stays that way even while hanging and repelling. I'm 6'2"/175 and the L/XL fits well with plenty of room.


Sizing can be tricky

  • Familiarity:I've used it several times

This is an excellent all 'round harness for either sport or trad climbing. I am 6' 1" (165 lbs) with a 32-33 waist. I initially went for the XS/M (fits waist 26-35 and thighs 18-24), but found that the gear loops ended up way around behind me. Even the front loops were at the back part of my side. So,, being the awesome company they are, immediately switched it out for the L/XL (fits waist 30-42 and thighs 21-27). So, just be aware of this when ordering. This is a very comfortable harness.


Perfect for anyone.

  • Familiarity:I've used it several times

I am 5 foot 8 inches and 190 pounds with a 34 inch waste and I went with the L/XL, it was a perfect fit. It is has a dual buckle in the front that is very easily adjusted and the perfect amount of padding to keep you comfortable but without feeling weighted down.


Easy Adjust

  • Familiarity:I gave it as a gift but have feedback to share

Got this to replace the boyfriend's old Petzl harness- that didn't have any adjustable leg loops and was quite frankly just uncomfortable- and this was the RIGHT choice! He says it's much more comfortable in the padding on the waist and legs, and having the adjustable leg loops is a huge plus as well. The adjustments are super easy, you don't have the fight with them to get it to your right size. The dual buckle on the waist is nice as well to ensure a swell fit and keep the harness right where you want it. He generally wears a 31-32 in pants and has a very athletic build- the XS/M is the perfect size. Another Thumbs Up for you BD!



    This is my second harness. I had the black diamond sa forever. I got this one for a more four season use to be Able to add more clothes. The only thing I don't like is that the elastics on the back aren't the clip instead there the slide in kind which is ok. But just a little time consuming.


    Great first harness

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

    Got this as my first harness getting into the sport. The slim padding keeps it low profile but fairly comfortable, and the adjustable leg loops are great for someone like me with skinny thighs that has a hard time finding a harness that fits well. Black Diamond advertises this as a great harness for agencies to use for rentals, but I think it's perfect for use around the crag. It's not advertised as an all-season harness (like the momentum al harness is) but as far as I can tell the only reasoning behind this is that there is no ice clipper slot. I see no reason why this harness couldn't be used mountaineering (the adjustable leg loops are great for sizing over extra layers as well).

    If you fall between sizes on other Black Diamond harnesses as well, then the dual adjustments on the waist band will allow you to keep your belay loop centered. The large range in possible sizes also makes it a great harness for loaning out to friends who are new to climbing.

    I bought this harness directly from Black Diamond on closeout, so I paid significantly less than the regular price of $70. At that listed price I would suggest that you go with the momentum sa (unless, as I stated earlier, you're between sizes).

    Pros: large size range, 12kN rated haul loop, one-handed adjustment of leg loops, entry-level price

    Cons: limited padding, no ice clipper slot (may be preferable for some), pricier than momentum sa or al

    In summary: great entry level harness that should last you years of service in all environments. I would definitely recommend this harness for someone who doesn't fit normally sized BD harnesses or will be sharing their harness with a friend.

    BD All-Around Series Harness

    Use. Design. Engineer. Build. Repeat.


    Bahbahbah bah I'm loving it.

    • Familiarity:I've put it through the wringer

    A super comfortable harness that kills it, the dual adjust is an awesome feature that gives you a range adjustment for a lot of different sizes. A few other great features are the plentiful gear loops to keep your gear on and the adjustable leg loops, from canyoneering to trad climbing this is a great harness.

    When will you Stock up on this for size...

    When will you Stock up on this for size S/M?

    Hey Dylan,

    Looking at the BD Website (and the size chart on this page) there are only two sizes available:

    XS/M and L/XL

    Currently there is *one* XS/M in stock. Hurry up and snag it!