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 78 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
Here's what customers have to say
This climbing harness is praised for its comfort, adjustability, and durability. Users report it is well-padded and adjustable around the waist and legs, making it suitable for both indoor and outdoor climbing. While some minor issues with leg loop twisting and discomfort during long belays were noted, the overall sentiment is very positive, with the harness considered a high-quality, versatile option, especially for beginner and intermediate climbers.
AI-generated from the text of customer reviews.
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Selecting an option will reload the available reviews on the pageOctober 24, 2025
Quality Harness for Many Uses
I bought this harness to use for gym climbing while I can keep my harness with larger/more gear loops in my trad climbing bag. So far it seems to be a comfortable harness to fall and hang in for a sport route. It also seems to be made well with durable materials. I appreciate Mammut's reinforced tie in points since this is a common area of wear due to the belay loop contact. Some harnesses made today trend very light and I'm glad using this harness, I do not feel it skimps on materials since it will get a lot of use.

Originally reviewed on ExpertVoice.com
October 20, 2025
Super comfortable harness with great adjustability.

Originally reviewed on ExpertVoice.com
October 13, 2025
Nice n light
Light. Comfy. Nice gear loops. Breathable. Love the one small webbing buckle. Easy to put on and adjust. And a great color!

Originally reviewed on ExpertVoice.com
October 9, 2025
Perfect Beginner Harness, Even For a Larger Person
I've been getting into climbing the past year and finally agreed to begin trad climbing over the past couple months. I was a bit apprehensive due to my size as a larger person but this harness fits and has proved to be a reliable and versatile piece of gear that I can rely on for several different purposes.

Originally reviewed on ExpertVoice.com
October 6, 2025
Good Entry Level Harness
The material and construction of this harness is great, but it just isn’t comfortable. The waist belt and leg loops are too thin and I can feel them digging into me while just being lowered. Catching and taking falls are a bit jarring. For the price, it’s alright, but I plan to give it away to a friend that’s just starting climbing. Unless you’re planning to just do a little top roping in the gym, get some gf ing more comfortable.

Originally reviewed on ExpertVoice.com
September 22, 2025
Lightweight, comfortable harness with impressive features
Very comfortable harness that gives me no rubbing or pinching while using. The colors look nice and vibrant, the finish quality is done very well and gives me tons of confidence just visually inspecting the harness. I love the tear indicator belay loop and the extra reinforcement on the leg and waist loops where the rope would run. This further instills confidence in the product, and will help this harness last me a long, long time. Definitely got me interested in the slightly more lightweight Togir 3 slide harness as a future upgrade, or as an option if I’m ever really trying to squeeze every last gram off of my kit. Would buy again and recommend to pro’s and beginners alike.

Originally reviewed on ExpertVoice.com
September 15, 2025
This harness was an awesome way to get back into rock climbing. It's super easy to adjust, it's light, and it has plenty of loops to carry gear. The waist belt is nicely padded and the leg loops are very comfortable. The whole thing feels very secure. It was very user-friendly for me, and it had been 8 years since I'd been climbing before getting back to it. This harness fits true to size.

Originally reviewed on ExpertVoice.com
September 2, 2025
This harness adjusts well with the straps around it, I use it more as a backup harness for my smaller friends since the amount that it adjusts is pretty good compared to other harnesses I've gotten in S or XS, there are some minor pressure points that I've found when people have these with baggy pants, but otherwise the fit is true to size and works around most clothing.

Originally reviewed on ExpertVoice.com
September 2, 2025
Haven’t had a chance to get it out and use it but the build quality feels top notch for the price.

Originally reviewed on ExpertVoice.com
August 28, 2025
Fantastic all around harness
This is such a great harness so far! It is definitely more comfortable than my previous one and holds up well with large whippers. It has great gear loops and the adjustable leg straps are key! I am 5’10”, weigh 170, and the large fits great. Lots of room for adjustment and if you are near that size! Highly recommend.

Originally reviewed on ExpertVoice.com
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