Black Diamond Momentum 3S Harness

Priced: $35.97 - $59.95 Rated:   - 5 stars out of 5 by 3 reviews.
Black Diamond Momentum 3S Harness
Zoom In
Color: Lava
Available Colors: $35.97
40% off
Regularly: $59.95
Gearx $47.96
20% off
Regularly: $59.95
Appalachain Outdoors $47.96
20% off
Regularly: $59.95
SunnySports $49.95
16% off
Regularly: $59.95 $53.96
9% off
Regularly: $59.95
Campmor $59.95
Mountain Gear $59.95
Visit our Daily Deals for great products at low prices.
Black Diamond Momentum 3S Harness -
Black Diamond Momentum 3S Climbing Harness Features.

Black Diamond Momentum 3S Climbing Harness.
Belt up with the Black Diamond Momentum 3S Climbing Harness and get ready to secure climbing assault any day of the year. Pre-loaded with Speed Adjust buckles on waistbelt and leg loops, the Momentum 3S provides a swift, secure, and safe support as you climb in any temperature. It distributes your weight evenly with its Dual Core construction that uses two webbings that split around the waistbelt. Utilizing an OpenAir foam technology, the harness lets the air ventilate in the waistbelt for maximum comfort. It has an elastic rear riser that is adjustable and releasable so the harness can fit you nicely. You can easily have access your tools without looking in your bag as it s equipped with pressure-molded gear loops. Harvesting load is also made more convenient with the help of its 12KN-rated haul loop. Now, you can strap up for comfort and security every season with the multifunctional performance of the Black Diamond Momentum 3S Climbing Harness.
This product can only be shipped to U.S. addresses.

Key Features.


  • Adjustable leg loops allow the harness to fit over outerwear


  • Bullhorn-shaped OpenAir waist belt built using Dual Core Construction
  • Dual Core construction utilizes two bands of webbing that split around the waist-belt for maximum ventilation and weight distribution
  • Dual core construction and form fitting shape improve comfort


  • OpenAir EVA foam insert increases comfort


  • Small - 27-30in (69-76cm)
  • Extra Large - 36-39in (91-99cm)
  • Adjustable, releasable elastic rear riser
  • Large - 33-36in (84-91cm)
  • 12KN-rated haul loop makes the harness suitable for big multi-pitch excursions
  • Medium - 30-33in (76-84cm)
  • Four pressure-molded gear loops provide quick access to gear
  • Pre-threaded Speed Adjust buckles on the waist-belt and leg loops are quick, safe, and secure

The Momentum 3S Harness from Black Diamond features speed adjust buckles on the waistbelt and leg loops to accommodate changing layers throughout the seasons and help you dial in the perfect fit. The 3S is built with Dual Core Construction, which uses two bands of thin webbing and an OpenAir foam insert in the waistbelt for affordable support and breathability without pressure points.

Appalachain Outdoors
The Black Diamond Momentum 3S harness is designed to handle everything from your mid-week gym session, to the climbing trad climbs over the weekend. This harness features Speed Adjust buckles on its waist belt and leg loops, which allow the harness to fit year round, no matter how many layers you are wearing. The four gear loops on the waist belt holds enough pro for any route you wish to tackle.

With the Black Diamond Momentum 3S Harness, you'll have the ventilation for long sport pitches in the summer, the comfort for multi-pitch adventures in the fall, and the versatility to tackle ice routes in the winter. Pre-threaded Speed Adjust buckles on the belt and leg loops allow you to quickly and securely adjust the harness without having to worry about doubling back, and the Dual Core waist-belt eliminates pressure points for all-day comfort.

Mountain Gear
The Black Diamond Momentum 3S Harness is an all-around, all-season harness with 3 Speed Adjust buckles, allowing you cinch it down when the sun is shining or adjust it to put over heavier insulation while mountaineering.

The Black Diamond Momentum 3s Climbing Harness is a 4-season harness with speed adjust leg-loops and good comfort. Dual core construction and a form-fitting cut improve comfort and save weight.


A harness that is ready for anything from mid-week gym sessions to alpine trad routes, the Momentum 3S is built for anything you want to crush. Dial in to comfort and convenience with easy to use Speed Adjust buckles that allow the harness to fit over clothes, no matter what temperature you're layering for.

Rack up your draws and pro for anything from quick sport climbs to multi-pitch trad with four sturdy gear loops. Dual Core Construciont uses two bands of thin webbing OpenAir foam insert in the waistbelt for affordable support and breathability without pressure points.

Want it cheaper? Set your own price.
Enter the price you want to pay and we'll email or text you if we find a store that will sell it for that amount:
Price: $
Your email:
Cell number: (optional, for text message)
Learn how offers work...
Average Price History: Price History
Review RatingNumber of Reviews
Adjustable Leg Loops:yes
Gear Loop:yes
Harness Class:Rock Climbing, Alpine
Harness Gender:Mens
Haul Loop:yes
Material:Nylon, Polyester
Weight:13oz (370g) Size Medium
Compare specifications to related products.

Black Diamond Momentum 3S Harness Reviews:


This is your basic sport climbing harness. I'm still pretty new to the sport climbing world, but I've tried all kinds of harnesses from friends and gym rentals. I've done a lot of belaying including some big lead falls and have taken a few gym falls in it and it feels fine. Feels as comfortable as any other harness I've worn. I also tried it out on a few short multi-pitch routes and all of my gear racked great with the gear loops. My only complaint about the harness is that it seems to have a little less padding around the waist than the other Momentum harnesses. Granted, its listed in the Big-Wall Harness so it does seem to be made to feel comfortable for some long climbs. Still fulfills my needs and is a 5 star harness in my books.

Andrew Frongillo at on 09/04/2013

Been using it about a month now, and the fit is extremely comfortable, and quick to get going. Was more familiar with the older style O-shaped buckle so the front loop closure took a little getting used to (in terms of feeling like it was safe and not going to come loose), but having climbed several times without incident now, I'm confident that it isn't going to come apart. Definitely recommend it.

maxp691227 at on 09/25/2013

I climbed some thousand foot routes with this harness in Red Rocks, Vegas and loved it! It is light, comfortable and I barely noticed wearing it when I didn't have so much gear attached to it. The speed adjust buckles make it a breeze to put on and off. I took a few whippers and this harness made falling feel comfortable.

Reuben Cousin at on 03/12/2013