Ophir 3 Slide Harness
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Dialed-in fit and dependable comfort in the Ophir 3 Slide Harness
What Our Gearhead® Experts Are Saying:
"This harness is one of the best values out there—it’s comfy, easy to adjust, and surprisingly light. The split webbing makes long belays way more bearable, and I’ve used it for everything from gym nights to alpine days. Super versatile and durable."
From weekend projects to alpine objectives, the Mammut Ophir 3 Slide Harness handles it all with comfort and versatility. Built with Mammut’s signature split webbing technology, it distributes pressure evenly for better breathability and support during long hangs and belays.
Adjustable leg loops and waistbelt provide a secure, custom fit, and the Slide-Bloc buckles make for quick and intuitive sizing. With four gear loops and a durable design, it’s ready for sport, trad, and everything in between. Whether we’re dialing in technique or swinging leads on a big objective, the Ophir 3 Slide gives us confidence without weighing us down.
Details
- Versatile climbing harness for indoor and outdoor use
- Ideal for sport climbing, trad, and multi-pitch routes
- Split webbing design improves weight distribution and airflow
- Adjustable leg loops and waistbelt for personalized fit
- Easy-to-use Slide-Bloc buckles for quick adjustments
- Four gear loops for organized racking of draws or cams
- High abrasion resistance for long-term durability
- Lightweight construction offers day-long comfort
- Item #MAM003J
- Material
- nylon
- Padding
- Split Webbing technology
- Buckles
- 3 Slide Bloc (self-locking)
- Gear Loops
- 4
- Ice Clipper Slots
- none
- Haul Loop
- yes, 4kN
- Chalk Bag Hanger
- none
- Claimed Weight
- 13.1oz
- Leg Loops
- adjustable
- Manufacturer Warranty
- limited 2 year
- Activity
- climbing
Reviews
Q&A
What do you think about this product?
Overall Rating
4.5 based on 65 ratings
Review Summary
Fits Slightly Small
Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.Customer Images
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Selecting an option will reload the available reviews on the pageApril 2, 2025
Very versatile.
This is a great, versatile, highly adjustable harness. I needed to replace my ancient cragger, but wanted something I could use for ropes courses (during Adventure Races) which can occur in any weather conditions and therefore may necessitate a very wide range of attire underneath the harness. So far this harness has been great at the gym. Light enough and comfy enough, though not something I’d want to hang in all day if I were working a route. I did try it on over a lot of different layers to get and idea of the range of adjustability and in that regard it is 100% a success. I’d say if you’re looking for a versatile harness this is a great option. If you’re looking for the most comfortable, or the lightest, or the gear-holding-est, there are likely better options out there for you.
Originally reviewed on ExpertVoice.com
March 24, 2025
It's a great harness
I have ran through my previous orphir 3 slide and it is a fantastic overall beginner/intermediate harness. Overall use it for gym and outdoor climbing. I am more into comfort padded climbing harnesses vs lightweight and non adjustable climbing harnesses. The adjustable leg straps and hip are great and can fit me and friends if they borrow the harness. I like the wear stitching being bright red and easy to locate/see is fantastic. I also love the semi hard gear loops they can fit all my quick drawers and climbing gear when outside. Overall would definitely recommend this harness to anyone looking for a comfy great harness.
Originally reviewed on ExpertVoice.com
March 23, 2025
excellent climbing harness
I've been using the ophir 3 for 5 years and have had zero complaints about it. although I don't get to climb as often as I used to, it still is very comfortable and sturdy and I have no concerns going on a climb. I have no doubt that this harness will serve me for several more years, and when I finally do have to lay it to rest, I would buy another mammut harness. 5/5 stars. Definitely recommend.
Originally reviewed on ExpertVoice.com
March 12, 2025
Awesome Fit/Padding
Have climbed in this a few times already and it fits very well. Holds all my gear perfectly and has been pretty comfortable as far as padding goes.
Originally reviewed on ExpertVoice.com
March 2, 2025
Great deal and well made product
So I finally was able to use the harness due to the gym being closed, but the waist portion is a great material and doesn’t feel uncomfortable. The attachment loop for the d ring in the front is solid and I feel safe when climbing. The only complaint I have is the leg straps hurt when being belayed. I would recommend this to anyone getting into rock climbing. It’s an overall well viewed brand and great product.
Originally reviewed on ExpertVoice.com
February 10, 2025
Lightweight and decently comfortable
I did not get this harness specifically just for comfort as I wanted a harness that would feel like I wasn’t wearing anything. So far after having if for over a month I am extremely happy with how it has performed. The material is comfortable and breathable, the gear loops are strong and can fit a lot of gear, and while climbing it barely feels like I have anything on. I did notice a bit of inner thigh rubbing while belaying and tugging from the rope, but it is not quite bad enough to make it worth looking at something else. I believe the slight sacrifice in comfort was well worth it for weight savings.
Originally reviewed on ExpertVoice.com
February 7, 2025
Comfy and well made
Just what I was looking for. Solid harness that feels great!
Originally reviewed on ExpertVoice.com
January 19, 2025
Comfortable harness
The Ophir 3 is an easy to use, comfortable and very well made harness. It’s easily adjustable, secure, and padded without being bulky. Great for outdoor and indoor climbing.
Originally reviewed on ExpertVoice.com
December 29, 2024
Great Harness
I’ve used this harness inside and outside, and I’ve loved it so far. It has a ton of adjustment, and fits perfectly where others might not adjust as well. It’s pretty light while sacrificing little. The comfort is pretty good, but after projecting for a while and taking a few falls it can start to bug you a bit but nothing to complain about. While belaying it also works very well, but same goes if the climber is projecting.
Originally reviewed on ExpertVoice.com
December 11, 2024
Amazing
This harness is durable and comfortable from the beginning. Love it!
Originally reviewed on ExpertVoice.com
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