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Mammut
4 Slide Climbing Harness

4.5 out of 5 stars
36 Reviews

Out of Stock

Don't worry though, we have a lot more Sport Harnesses in stock than that.

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Easy adjustability and all-around performance in the 4 Slide Climbing Harness

What Our Gearhead® Experts Are Saying:


"The 4 Slide is the harness I recommend to new climbers and anyone who wants something super adjustable. It’s comfortable, fast to put on, and fits over layers really well for ice or alpine days. Great value and works for just about any style of climbing."


Whether we're just starting out or need a do-it-all harness for changing seasons, the Mammut 4 Slide Climbing Harness offers the fit, comfort, and versatility to handle it all. Four Slide-Bloc buckles—two on the waist and one on each leg loop—make size adjustments fast and intuitive, which comes in handy when layering up or sharing gear.


The ergonomic padding and wide support zones distribute weight evenly, keeping us comfortable on long belays or hanging rests. With four gear loops and reinforced tie-in points, this harness is ready for everything from gym laps to alpine adventures. It’s our go-to when we want one harness that covers every discipline.


Details

  • Adjustable climbing harness built for versatility and value
  • Ideal for gym, sport, trad, and alpine climbing
  • Four Slide-Bloc buckles for quick and customizable fit
  • Ergonomic padding adds comfort during long sessions
  • Reinforced tie-in points enhance durability and safety
  • Four gear loops for racking draws or building trad systems
  • Fits over layers for use in cold-weather or alpine settings
  • Item #MAMU5AZ
Material
92% nylon, 8% elastane
Padding
yes
Buckles
4 Slide-Bloc (self-locking)
Gear Loops
4
Ice Clipper Slots
none
Chalk Bag Hanger
yes
Claimed Weight
1lb 1.3oz
Leg Loops
adjustable
Manufacturer Warranty
2 year

What do you think about this product?

Overall Rating

4.5 based on 36 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 1 reviews
3 Stars - 3 reviews
4 Stars - 9 reviews
5 Stars - 23 reviews

Fits Slightly Large

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

Customer Images

Here's what customers have to say

The harness is versatile and comfortable, with a customizable fit that can accommodate various body types. It is durable and suitable for both novice and experienced climbers. While some reviewers noted it may not be as compact as other options and the gear loops could be a bit loose, the harness is generally considered a high-quality and reliable choice that provides good value.

AI-generated from the text of customer reviews.

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5 out of 5 stars

July 16, 2025

perfect gym harness

great affordable harness that feels solid, I really only use for gym climbing but great entry to intermediate level harness and won’t break the bank.

Casey S
ExpertVoice.com

Originally reviewed on ExpertVoice.com

4 out of 5 stars

May 5, 2025

Harness does the job and looks cool, but gets pretty uncomfortable on the inner thighs after belaying for an extended period.

Reid L
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

January 30, 2025

Easy to instruct with the dual color. Squishy leg and waist straps.

galadriel M
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

January 30, 2025

Great adjustable fit

Comfortable fit. I choose this because I'm a thicker lady and there were not a lot of options with sizes large enough. This fits me great and comes in a variety of colors. I use it at our local climbing gym for climbing and top roping.

user image
Adrien L
ExpertVoice.com

Originally reviewed on ExpertVoice.com

4 out of 5 stars

September 19, 2024

We use these to belay on shift at my climbing gym and the large pads make them very comfortable during long belays. Great harness for those working indoors at a gym with new climbers.

Fiorella F
ExpertVoice.com

Originally reviewed on ExpertVoice.com

4 out of 5 stars

August 29, 2024

It's great so far for gym and everything

Familiarity:
I've used it once or twice and have initial impressions
Size Bought:
M-xl
Height:
5' 10"
Weight:
208

So I hung on it in the was clipped my PAS into and anchor, the sides my hips dug in a bit. It's not as comfortable and my misty mountain cadilac, but it's not bad. I could totally do a hanging belay. Rappeling or lowering in gym seem totally fine. I don't notice in when climbing. So over all I think it's pretty comfortable harness. Nothing to complain about.

gnrp694458 g
5 out of 5 stars

August 21, 2024

Super Comfy

Great harness with a wide range of fit! I am on the larger size of humans, and this harness fits great! The waist cinches down from both sides of the harness vs only from one side like my previous harness. This makes the harness stay more centered on my body, and therefore more comfortable to climb in.

Ryan K
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

August 19, 2024

Comfy and supportive

Size Bought:
M-xl

Comfy supportive and adjustable

Elab
3 out of 5 stars

July 6, 2024

Pads are not super comfortable compared with Black Diamonds Momentum harness. However this harness is much lighter and gets the job done with sport climbs.

Alex B
ExpertVoice.com

Originally reviewed on ExpertVoice.com

4 out of 5 stars

May 30, 2024

Great harness!

I love this harness! It’s incredibly comfortable and well padded. If you don’t mind the extra bulk that comes with that, this is a great choice for you! It feels very durable and well-made. The one issue that I’ve had with it is that it takes a bit longer to don, however this is something that I personally don’t mind, as I love the extra comfort this provides. I think this is a great product for beginners and intermediate-experts in gym or outdoor environments.

Arlo G
ExpertVoice.com

Originally reviewed on ExpertVoice.com