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 45 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 harness is praised for its excellent overall quality, comfort, and adjustability. It features sturdy construction, generous padding, and easy-to-use dual waist buckles that allow for a snug, customized fit. The harness is versatile, suitable for both gym and outdoor climbing, and considered a great value. Some users note it may be a bit bulky or heavy, but the majority find it comfortable and reliable, especially for beginner and intermediate climbers. The gear loops are generally seen as functional, though a few users wish they were positioned differently. Overall, the harness offers a winning combination of durability, adjustability, and comfort.
AI-generated from the text of customer reviews.
View
Selecting an option will reload the available reviews on the pageOctober 2, 2025
This harness is so light and highly adjustable! It's a great solution for a slim person because of how adjustable it is , it has two waist buckles on either side to get a snug fit! It looks sharp and the gear loops are sturdy and keep their shape
Originally reviewed on ExpertVoice.com
October 1, 2025
Fun design/look and good/safe features
I've been using my old harness for many years now and the padding was starting to fray on me, so I thought it was time to upgrade. I've been very pleased with this Mammut harness. It is a very high end harness as for manufacturing quality, comfort, easy on/off, and gear loops. I love the look of it as well. Big fan of this harness and will be buying others in this same product line for my family members moving forward.
Originally reviewed on ExpertVoice.com
September 28, 2025
Mammut harness
Fantastic harness. Like that it is very adjustable and comfortable. Construction seems really solid and is a great value. The first time I used it I had to adjust it more than my last harness due to the split waist but was able to quickly dial in the fit. I’ve only used it gym climbing but seems versatile enough for sport climbs.
Originally reviewed on ExpertVoice.com
September 25, 2025
Awesome harness
Purchased for patroller use in chair evacuation Al ski area. Big fear loops, packs small into evac bags, tow sizes cover all types of people, well made and quick visual crack that they are out correctly.
Originally reviewed on ExpertVoice.com
September 24, 2025
September 24, 2025
All around great harness
Great all around harness for the price. Easy to rack and sling gear for long sport routes or mixed trad climbs.
Originally reviewed on ExpertVoice.com
September 4, 2025
Very comfortable harness
Nice and comfortable harness with lots of padding. Two buckles makes it easy to adjust. Gear lockers are semi-molded and hold gear well. This is a great all around harness.
Originally reviewed on ExpertVoice.com
August 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
Do you have a question about this product?
Related Categories
Related Searches
Mammut 4 Slide Climbing Harness reviewBest climbing harness for beginnersAdjustable leg loops for comfortSelf-locking buckles for safetyPadded waist and leg loopsLightweight climbing harness optionsDurable nylon climbing harnessClimbing harness with chalk bag hangerVersatile harness for sport climbingMammut climbing gear for all agesComfortable harness for projecting daysTop-rated climbing harness for trad climbingLearn more about 4 Slide Climbing Harness