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Arc'teryx - FL-355 Harness - Women's

Arc'teryx FL-355 Harness - Women's

Temporarily Out Of Stock

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

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Tech Specs

Burly Double Weave (50% nylon, 43% polyester, 7% elastane)
7075-T6 aluminum
Gear Loops:
Ice Clipper Slots:
yes, 4
Haul Loop:
Claimed Weight:
[M] 12.5 oz
Recommended Use:
sport climbing, trad climbing, ice/mixed climbing
Manufacturer Warranty:

FL-355 Harness

Built for women who climb ice, rock, and alpine routes, the Arc'teryx Women's FL-355 Harness combines high performance with an incredibly lightweight construction for unrivaled versatility. With an exceptionally comfortable women-specific fit, the FL-355 is made from Burly Double Weave four-way stretch material that is both strong and flexible. Type 66 nylon webbing is found in the elasticized, fixed Sure Fit leg loops that automatically adjust for a precise fit, no matter your size or how many layers you're wearing, allowing you to take this harness from the gym to the ice wall.

With its longer belay loop, it accommodates the women's differential between waist and leg loops. Equipped with Arc'teryx's signature Warp Strength Technology, the FL-355 equally distributes weight across the entire harness for lasting comfort, instead of loading a single strip of webbing in the center which creates uncomfortable pressure points. Meant for use in in any condition, this harness is outfitted with a self-locking buckle, four ice clipper slots, four gear loops, a rear haul loop, and a stainless-steel quick hook that allows you to use the bathroom without having to remove anything.

  • Sure Fit elastic fixed leg loops
  • Burly Double Weave material
  • Warp Strength Technology
  • Auto-locking buckles
  • Gear loops
  • Ice clipper slots
  • Rear haul loop

Most Comfortable Harness I've Ever Worn

  • Familiarity: I've used it several times

If you don't know already, Arc'teryx has been building and selling harnesses since 1989. They were originally called Rock Solid Manufacturing and harnesses were the first gear they made. After using all kinds of harnesses out there, I can tell you Arc'teryx's harnesses are on a totally different level! They are incredibly comfortable and lightweight, yet as strong as it gets. I've seen them made and R&D tested in person in Arc'teryx's Arc'One in New Westminster, BC, and was blown away by the amount of detail that goes into these harnesses. After wearing and seeing how they are made, I feel they are the best and most comfortable harnesses out there.

Arc'teryx has 2 models of women's harnesses currently, the FL-355 and the AR-385A. The main difference is that the AR-385A (AR for All Around) has adjustable leg loops and the FL-355 (FL for Fast and Light) has fixed stretchy leg loops and weighs even less. Both are great, it just depends on your preference for leg adjustability and the size of your legs.

Tipping the scale at only 12.5 oz, the FL harness is so light you don't even notice it is there. I like for my legs to feel snug in a harness, so I wasn't sure what I would think about the FL until I tried it. After wearing it, I realized I actually prefer the leg loops in the FL to the AR because the stretch leg loops move with you and feel secure yet extra comfortable. I wore it around all day climbing in Squamish and barely noticed it was there whether I was climbing, sitting, or hiking to the next climb. I never took it off until I was done for the day.

The ultralight, yet feature-rich FL is designed to handle any and all types of climbing. It has 4 gear loops, 4 ice clipper slots, auto-locking buckles, rear haul loop, SureFit elastic fixed leg loops, a quick hook that allows you to easily release the rear strap to go to the bathroom without taking the harness off. The whole harness is built with incredibly strong Warp-Strength Technology that provides an unprecedented even weight/pressure distribution across the whole harness structure, eliminating pressure points and providing next-level support.

The last thing you want to be thinking about when you're climbing is your harness, so if you're looking for an extremely comfortable, lightweight, and low-profile harness with every feature you need that's as strong as they get, I highly recommend you try the Arc'teryx FL or AR harness. If you have questions about either of these harnesses or any other Arc'teryx product, feel free to reach out to me at amcclary@backcountry.com .

Most Comfortable Harness I've Ever Worn

Of you are tall that’s the one that fits

  • Familiarity: I've put it through the wringer

I have tried BD Zone and Mammut harnesses before, and they didn’t feel well enough: I’m 5’11” tall, and between M and L sizes. Zone size M felt short, also, however good on my waist, the strap wasn’t long enough to take it off my hips without struggle. Mammut L was just too big in waist. This guy just sits in place. It’s comfortable on belay, it’s reliable on fall, it also looks great. It packs into a really tiny bag, and has enough loops for sport and trad climbing. I like it, and however expensive it is, I would recommend this harness to a tall girl with big hips and thin waist. Obviously it would fit others, but surprisingly enough, it was hard to find a harness that would work for my body shape

To Clear up any confusion

    So I know Arc'teryx harnesses can sometimes not make sense and a little confusing on which one is best for you, here is a break down video from Arc'teryx to clear everything up:

    The Best

    • Familiarity: I've put it through the wringer

    I have used and abused 2 generations of this harness and I will keep doing so. It's lightweight, comfy, and (when i don't eat all the treats) the non-adjustable leg loops fit like a glove. I have projected, mountaineered, canyoneered, and took it with me on a 2 month trip to Thailand where all I did was sweat in it and it did a fantastic job! My only complaint would be directed at the waist strap...I swear it used to be longer. I have to unbuckle the whole thing to get it over my hips, but if that waist strap was like 3" longer, it would be perfect. I'm 5'6" ~120lb and wear an XS; if I were to size up for the longer strap, it would be too big. Regardless, I will keep buying this harness.

    Super comfortable

    • Familiarity: I've used it several times

    I love this harness.

    I've used it mostly for gym climbing so far, but it's been really awesome. I'd recommend it to just about anyone! Very lightweight, thin and not at all bulky, I love the non-adjustable leg loops. This may be my perfect harness.

    I also work in a gym, so I'm often belaying for long periods of time, and I've ended up wearing this harness for 6+ hours just because it was so comfortable that I didn't feel like taking it off!

    Sizing is an issue

    • Familiarity: I've put it through the wringer

    I have been using the R280 from 2008 forever and love love love it. Not sure when the sizing changed but there are 2 major problems that would easily be fixed. 1. New models do not have a waist strap that is long enough. I have narrow hips, this would be so much worse if they were normal or large. I have the small and I can barely squeeze my hips through the harness (often I just unbuckle it). I cinch it down as tight as it goes, so a medium would be too big in the waist although it would be easier getting over my hips. The issue here is having to unbuckle the strap, not a great thing as when rebuckling if a mistake is made it could be fatal. Please, please make this strap longer! Yes it might flap around but that is insignificant to fitting well. The R280 has 4 " longer. 2. The leg straps are not long enough. I am somewhat long waisted, so perhaps this does not affect alot of women. The leg loops ride up to my crotch which is incredibly uncomfortable after about 10 minutes belaying. A 2 week trip climbing daily left me with bruises around my crotch. Another 2-3" of extension on the leg loops would allow this to fit almost any body type. Cross posting in hopes of getting the engineers' attention, I do not want to switch to another harness--these are the absolute best when they fit right :)

    Seconding this! The leg straps are too short. It feels like I'm too tall for the harness. I bought an xs, which was perfect around the legs and waist, but rode up in the crotch just walking around my apartment and was excruciating. I own a previous version in size small (purple/blue adjustable leg loops) and didn't have this issue, but the waist is about 4 inches too large so I thought I'd try the XS. Arcteryx, pretty please will you change this for the next iteration? Also bring back the purple! :) [Edit: if it helps others ordering, I'm 5'10" 130 lbs. and have a muscular upper body- surprise surprise! ;) ]

    Best Harness

    • Familiarity: I've put it through the wringer

    I climb in this harness for 24 hours straight and I never noticed it once!

    Best Harness

    Step Up Your Harness Game

    • Familiarity: I've used it once or twice and have initial impressions

    Fit: Arcteryx fits small. I wear a small in Black diamond harnesses, and originally tried a small in another Arcteryx harness, and was bummed to find that it fit a bit tight around the thighs and almost too small around the waste. I probably could have made it work, but my thighs were a bit too muscular for comfort in the small. Got a medium and fits much better, although may be a bit larger around the waste. Chronic problem. For comparison, I wear a size 8 in arcteryx pants, but a 6 in most other brands.

    Performance/Use: This harness is awesome – the material and fit make it super nice to climb in, the gear loops are more heavy duty than my previous BD harness. I only use it for sport/lead climbing, but have been pleased with performance.

    Lightweight yet super burly

    • Familiarity: I've put it through the wringer

    I've used a previous generation of this Arc'teryx harness for 5+ years and it's held up wonderfully - I've completely put it through the wringer and it's still in fantastic condition with no obvious wear and tear. I love that it's super light and doesn't feel like you're wearing a harness at all, yet it's comfy on long hanging belays. Great for hot days and long approaches, and doesn't start hurting if you're working a move and falling over and over.

    I use this for cragging, alpine climbing and canyoneering. I can fit two thin layers under the leg loops (wool long undies and hiking pants) if needed. I have a different harness for ice climbing and mountaineering when I need thicker layers and/or the ability to put my harness on while wearing crampons. I love that it stuffs so small and takes up almost no space in my pack.

    I'm expecting to get a lot more mileage out of this harness, and when it's finally time to move on, I will definitely come back and buy another one.

    The most comfortable harness ever

    • Familiarity: I've used it several times

    I also love how low profile this harness is. It compacts down super small, which is great for getting to remote crags and bike to climb endeavors.

    Yay! photo shoot!

      Yay! photo shoot!

      Am I even wearing a harness?

      • Familiarity: I've used it several times

      So light and comfortable! that is what makes or breaks a harness! After having an Arcteryx harness I'm not sure I can go back to my other harness! Arcteryx's webbing design is truly the way to go. In the gym or on the big wall you cannot go wrong with the FL 355! Most people are skeptical about the non adjustable leg loops but they are not as bad an you would think. I actually preffer it because the buckles don't get in the way or get caught on anything. I love the minimalist weight of the harness Also the protected gear loops are nice too so you don't have to worry about the loop wearing as quickly as a fabric loop does.