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Ophir 4 Slide Harness

4.583333333333333 out of 5 stars
12 Reviews
Color:Black/Safety Orange


Size Chart


Why We Like The Mammut Ophir 4 Slide Harness

The highly versatile Mammut Ophir 4 Slide Harness brings the comfort without the weight for trad, sport, gym, and multi-pitch routes. The two-part webbing technology minimizes pressure points without adding extra padding to create a lighter, more comfortable harness by boosting airflow and mobility, so we feel free on the wall. To find our perfect fit over the day's layers, we simply cinch the 4 quick-fit buckles that keep the belay loop and waist belt centered.


  • High-comfort harness for climbing indoors and out
  • Two waist buckles help keep your belay loop centered
  • Adjustable leg loops provide a fully custom fit
  • Self-locking buckles for quick-and-easy adjustments
  • Two-part webbing construction for breathability and mobility
  • 4 gear loops help organize your quickdraws and protection
  • Reinforced tie-in point for increased abrasion resistance
  • Indicator belay loop tells you when the harness is worn out
  • Item #MAM003L
two-part webbing technology
4 Slide Bloc, 1 Drop Seat
Gear Loops
Ice Clipper Slots
Haul Loop
yes, 4kN
Chalk Bag Hanger
Claimed Weight
Leg Loops
Manufacturer Warranty
limited 2 year

Overall Rating

4.5 based on 12 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 1 reviews
3 Stars - 0 reviews
4 Stars - 2 reviews
5 Stars - 9 reviews

Fits 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.
Runs smallTrue to sizeRuns large

What do you think about this product?


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5 out of 5 stars

April 19, 2024

Fits well and hangs nicely on the body. Comfortable climbing

Benjamin D

Originally reviewed on

5 out of 5 stars

February 5, 2024

Great harness

Very stable and comfortable. Handy slides, more is better.

Originally reviewed on

5 out of 5 stars

August 2, 2023

This harness has a really wide range of adjustability. I'm a size 32 waist and ordered the M-XL. My waist is on the smaller side of the recommended range for this size, but it still feels very secure. The leg loops have a wide range of adjustability too. This adjustability really comes in handy when you want to add an extra layer of clothing for cold weather. It's a solid all around harness - I mainly use it for sport climbing and it works great. It's very breathable and comfortable as well.

Stephen B

Originally reviewed on

5 out of 5 stars

July 12, 2023

multi purpose harness

Very good for both multi-pitch and indoor climbing. Light and comfortable.

Originally reviewed on

4 out of 5 stars

April 10, 2023

Comfortable harness

The fit is interesting. I'm 30-31" waist, got a large, and it's almost too big for me. It is a little clunky, I don't mind it, but I could see where it would get in the way.

Originally reviewed on

5 out of 5 stars

December 16, 2020

Adjustability is great, fits me perfectly, does exactly what I need it to. Can wear it climbing in the summer or it can adjust enough for me to have it on over my ski gear if need be. Solid piece.

Quinn W

Originally reviewed on

5 out of 5 stars

December 12, 2020


It's comfy for all day wear, the padding is closed cell foam so it doesn't absorb sweat or moisture. The gear loops are rigid and make clipping and unclipping very easy. I am still getting used to the plastic bit in the front but minor comment. It's looks great too, not that it matters.

Originally reviewed on

5 out of 5 stars

November 25, 2020


Solid, good quality harness that I have gotten a lot of miles out of. Nothing fancy but does the job well.

Originally reviewed on

5 out of 5 stars

October 18, 2020

No issues with it so far. Easy to get on and off, plenty of space with the 2 sides to tighten it around the waist no matter what you have on. Comfortable and great features.

Originally reviewed on

4 out of 5 stars

April 3, 2020

Great harness but get it a size big.

I returned this product before using it
Size Bought:

I really liked the harness on my initial impression, but when i put it on it was much to small. i was able to wear it but it was clearly not meant for a 30in waist like the size chart says, i would aim for the large if you are a grown adult almost regardless.

Daniel K