I had the fortune to get my hands on the R320 last Rocktober,and put quite a few sport and trad pitches on it. The obvious question: Is it comfortable? Answer: equal to my old Vapor, but with even less bulk. The Arc'teryx designers have innovated again, and left the other harness companies behind. The weight distribution is what makes this harness work. Other harnesses use padding to minimize pressure points, whereas the R320 uses the structural webbing, spread edge to edge in the leg and waist, to alleviate pressure points all together. I could barely tell I was wearing a harness until I came to a stop after pitching, and not landing on the ground. Gear racks are low-profile,and you can change racking direction to tend forward or back. And the face fabric is super tough Schoeller. Go get those offwidths! Coolest thing in climbing gear this season, for sure. How old is your harness?

This is the best gear "investment" I could have made. I have always used Arc'teryx harnesses but this thing raises the bar to a whole new level. Everything from the self-locking buckle to the wear safety markers make this a piece of equipment you can trust. And is it comfortable! I dangled for about 45 minutes from the top of a crag belaying my partners and never once went numb! Just check to make sure you really are wearing it - its that light!

I own a BD and a Petzl harness, and never really had anything against them but as soon as I tried the 320, it felt like another world of harness. It is super light, low volume (easy to pack), very comfy, and thin as hell. Far better than any other harnesses for sure.There is also only one security check on this one, like my Petzl one, no need to double back.It's pretty solid even though it's that thin and light: I took several whipper yesterday within one of them was probably 20 feet big.So, yeah I totally recommend this harness, I know it's pricey so try to get it at a discounted price and then it's more than worth the money :)
And before I forget, I wear 32-waist size pants and I got the medium. It's right there. I think if you're 33 you should go with the large...

I finally traded up to the Arc'teryx R320 and I'll never go back. So comfy that I often forget that I have it on. I can't tell you how many days I've walked back to the car after a day of cragging, only to realize that I never took it off. Nice to hang in and when you're buddy is hanging on his project for 30 minutes, the belay is still pretty comfortable.

I have a size 30 waist and I went with a medium. It fits good with the waist cinched up fully. I could have easily gone with a small though. (only difference really would be no dangling webbing which I tuck out of the way anyways.)

A great sport harness, the R320 is the epitome of minimalist. It's so light and comfortable, I'll forget to take it off in the gym when I boulder for a bit after doing some roped climbing. I have really loaded the harness up, but with a dozen quickdraws on the gear loops, the weight was distributed very comfortably. At first, the leg loops made my legs go a bit numb while I was setting up a route going up an overhanging roof (hanging in the harness for quite a while). But since then, it seems to have broken in or adjusted a bit and I have never had the trouble since (and I've hung in it quite a bit more). Definitely worth the money for me for sport climbing.

The R320 is super comfortable and lightweight. It is hardly noticeable when worn and distributes the rope forces very nicely without all a bunch of padding just as it says in the description. The gear loops are solid and hold more than enough draws. It is seems quite durable as well, holding up to wet conditions and general wear nicely. It performed wonderfully on my first super soggy, muddy, and wet trip to the Red and looks like it will be protecting me for many more trips to come.

This is the best harness I have used, weighs next to nothing but has all the comfort of a much heavier harness. I like the way the gear loops hang. Very comfortable, I highly recommend this harness to anyone from beginner to expert.

Pros:
Very lightweight and moves well with your body.
Comfortable to wear while hiking and descending from long routes.
Gear loops are reversible and large enough for a double rack of cams plus quickdraws.
Packs up really small so it does not take up a lot of space in a backpack.

Cons:
The elastics lost their power very soon and partly ripped off. This is especially annoying at the leg loops, their fit became too loose.
The tie in loops show significant tear and wear after one year of occasional (1x every 2 weeks) use.
The warp webbing does not "breathe". Your sweat will be caught under it. When you get rid of the harness, you will feel wet in your back.

this is a great sport climbing harness, really comfy to take falls on and hang in, you hardly feel like you are wearing anything while climbing. its not so good for trad climbing when you have to carry alot of gear as it buckles under the weight and is uncomfortable, the angled gear loops tangle ur gear if u load up more than half the length, i still love this harness for sport climbing, but bought the new bd chaos for trad, which is also super light and comfy to hang in, gear loops are better for carrying weight, if u just want to buy 1 harness to cover all bases get the bd, but if you want the best sport climbing harness, this is it!!

I don't think you can get a better harness. There is no rear photo available, so what you get there is a haul loop, a little chalk bag hanger loop, and two more big gear loops. These gear loops are really big. You can probably fit 12 draws on one alone I've been through a lot of harnesses, don't waste your time or money and just spend the extra 50 bucks for this one. Just do it, you'll never look back.

This thing is so light and comfy you could forget to take it off after you last climb, pack up, drive out and not realize you were still wearing it 'till you stopped for gas and reached for your wallet. Warp Strength rocks. I am a believer. Albeit, a believer that can afford a $100+ harness.

Very light, Really nice material. But when I put a bunch of quick draws on it felt unsupportive. If your justs sending routes with no equipment on this is the harnness for but with no support hanging gear from it is uncomfortable. I now have Black Diamond Chaos and love it.

Feather light, durable and easy to have on and off. Not very comfortable for long trad climbs, but still does a good job for day-pushes.

I was really exited to try this harness out because of all the great reviews I read. Unfortunately it did not work out for me. I'll start with the good: VERY VERY light and sleek looking, it is also very comfortable to hang in and to take falls. The reason why I sold this to my friend was how it fit while I was on the ground. The leg loops were too tight and the distance between the waist loop and the leg loops was not long enough for my body type. The Petzl Adjama fits much better and I feel is about the same comfort level, only trade off is the weight. Another thing I noticed while comparing the two harnesses, was that the leg loops on the Adjama were more comfortable than the R320, but the waist was not. If you have skinny legs, a short torso, and the extra money this harness will be great for you, but if not save the money and get a Petzl. (Or an Arc'teryx with adjustable leg loops)

This harness is the most comfortable harnesses I have ever worn! When we climb I wear it for about 6 hours straight and it doesn't bother me one bit. It is light weight and not bulky at all! Other harnesses feel like a diaper, I forget I am wearing the Arc'teryx harness!

I've been using this harness for a few months, and I have mixed feelings about it. I would describe it mostly as a sport harness, which doesn't work as well for trad/aid/ice. The leg loops are quite snug on me, and I have a moderate to small build. On the positive side, this harness is extremely light and packs smaller than any other I've seen. This would make it a good harness for summer alpine routes (winter alpine/ice climbing wouldn't work well with the tight non-adjustable leg loops). The WST fabric does do a good job of distributing the weight, so it is pretty comfortable. One other weight saver is there is no load bearing loop on the back for taglines - there is just a little plastic loop big enough for a biner. The self-locking buckle is great, it makes it very fast and easy to adjust the harness.

This harness fits me well and hangs even better. I bought it. Then when I got home I read the instructions on use. No girth hitching allowed on belay loop, super light haul line, and gear loops. If you climb indoors or let your climbing partner do all the work this harness is great. I prefer a harness that has a lot more courage. I climbed one multi pitch and retired it. Gear loops, haul lines, and belay loops deserve more than this.