4 Slide Climbing Harness
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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
Reviews
Q&A
What do you think about this product?
Overall Rating
4.5 based on 38 ratings
Review Summary
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.Customer Images
Here's what customers have to say
The Mammut climbing harness is a comfortable and adjustable option suitable for both beginner and intermediate climbers. It is well-padded and features durable gear loops and a belay loop with a wear indicator. While some users found it a bit bulky, the harness is versatile for both indoor and outdoor climbing and provides good value and functionality.
AI-generated from the text of customer reviews.
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Selecting an option will reload the available reviews on the pageAugust 23, 2025
New Climber, first harness
I’m a newer climber, any experience has been solely with bouldering. I needed to break out of my comfort zone and start to do some top rope in the hopes of working on my fear of heights. Renting a harness was fine but I really wanted something of my own that I would feel comfortable in. This Mammut harness is substantial, feels strong, has very secure straps, is very comfortable, and looks good to boot. I highly recommend it to anyone looking for a great first harness for indoor climbing. FYI - It is adjustable but fits snug. It’s part of the appeal for me but your mileage may vary.
Originally reviewed on ExpertVoice.com
August 3, 2025
Does the job!
Fits me great. I’m 5’10” 170 lbs. I have used in the gym and outdoors on a multi pitch so far. Gear loops are plenty. Harness held me, so it works!
Originally reviewed on ExpertVoice.com
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.
Originally reviewed on ExpertVoice.com
May 5, 2025
Harness does the job and looks cool, but gets pretty uncomfortable on the inner thighs after belaying for an extended period.
Originally reviewed on ExpertVoice.com
January 30, 2025
Easy to instruct with the dual color. Squishy leg and waist straps.
Originally reviewed on ExpertVoice.com
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.
Originally reviewed on ExpertVoice.com
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.
Originally reviewed on ExpertVoice.com
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.
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.
Originally reviewed on ExpertVoice.com
August 19, 2024
Comfy and supportive
- Size Bought:
- M-xl
Comfy supportive and adjustable
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