Osprey Packs Atmos 50 Pack - 2800-3200 cu in - 2007 BCS

It is a very nice pack. It's strong and very intelligently engineered.I thought I'd have trouble packing all my stuff since it's so small, but it fit a ton of stuff in it. I am 5.5 and 155 lbs and this thing is a good fit aside from the straps. Only other thing I don't like about it is that I cannot get into the waist pockets with the straps tight. Very good product overall. Just not made for somebody with thicker shoulders.Despite what many people told me about the straps breaking in, they didn't. After several more uses I just got tired of it hurting my shoulders. I am a mechanic and my shoulder muscles are just to big for this pack. It is great and super light and it makes me sad that it doesn't fit right, however it fits my dad pretty good so he'll make good use of it.

I have been using this pack for about a year now and personally I love the way these packs fit, they are very light and comfortable with tons of features. I sweat a lot in summer and although the design of this pack won't stop that (only cold weather can do that), it reduces it a lot! The only thing I can think of that I would like that this pack doesn't have is a daisy chain or more places to attach things to the back of the pack (and that is mainly because I use it for winter as well as 3 season).

I have three packs, a multi day pack (which I got before I found Osprey packs and can't justify replacing), the Atmos 50 and 35. Each has their own place, I use the 35 for most hikes and the 50 for light overnights, winter day hikes (not what the pack is for, and although it works it isn't what I would recommend) and hikes where I want to bring something that takes a lot of space (for example I once took ice cream to the top of a mountain and I needed the space to fit the cooler with dry ice as well as the usual gear). This is usually overkill for light day hikes and it isn't large enough for multi day trips unless you are a real minimalist.

You should go and try an Osprey pack at a local shop to make sure you like the feel, some people like the way that Gregory (or some other brand) packs fit better, but if you like the feel you will love this pack!

Midway through a day of trying to find an ancient trail, that hadn't been used in many years I realized I had a fully loaded Atmos 50 on. It's hard to argue with a pack that you forget your wearing.

After hiking over 3,000 miles this year with the Atmos 50, I can attest to the quality and durability of the product. Like all Osprey packs, it takes a day or two to break in the shoulder straps, and then you’re good for a decade. I think it’s funny how outdoor gear sales people try to convince would-be customers that packs like this can’t handle the needs of extensive trips. Well, leave the canned food and the blue jeans at home and you’ll be fine. I love this pack. You get the best of the internal pack with the breathability of an external frame. If I could have any pack in the world, for long-distance hiking, it would be the Atmos 50 I already have. Sure it’s dirty and has a few small dental floss and duct tape patches, but the pack has no major issues and has treated me well. It's going to hike the CDT with me next year!

I used this pack size large on a 21 day trek in Nepal around Makalu I packed my down bag, Thermarest, sometimes the tent, snack food, chaco's,extra set of clothes, hygiene stuff,first aid, 100 oz. pladder, MSR filter, and other gear headlamp,knife, etc. If you are a serious about going light then this is the pack use compression sacks for everything u can and it will hold all you need. Even used it as my carry on the whole trip. As far as comfort on long hauls it is great. Began the 21 days with a 37lb. load sometimes 40lbs. when carried tent by the end had 35lbs. and was awesome no matter the load. I will add that even though you need a rain cover I got dumped on for about 2 hours before I stopped to dig my cover out (keep it handy) and only a few things got damp. Hip pockets are real handy, should have kept my cover in one. Only down side is loading and unloading. I would add a bottom load zip as well then I would call it near perfect. Use it all the time on short hikes in CO perfect. Osprey makes some tough packs this is my Favorite.

I pride myself on being the most demanding of consumers. I think it helps others stay informed in an age where you cant always try things on.

I find the sizing does not fit broad shoulders well, mostly because some of the plastic hardware would rest on my back when I carried the pack.

Aside from that, the mesh panel allows great ventilation, but at a substantial cost in usable volume. The main compartment looks like a crescent shape when viewed from the side, tough for your longer items. Additionally, I shouldn't have to move up to the atmos 65 (which i liked less) in order to get a bottom zipper.

I have the above measurements and pack size. This pack has performed well for me. The only time I had a problem was day 2 of the Inca Trail. I didn't adjust the straps properly in the morning and one of the shoulder straps really dug in hard all day afterwards. I tried correcting it at lunchtime, but it was already sore at that point. Other than that, which is partially my fault, I've had no problems. I think the only minus is it's lacking the bottom zip the 65 has. I have the 08 and before version of this pack.
Additionally be careful as 09 brings a new model with several additional features:
- air cavity is vented on the side, this allows it to be smaller and gives you a easier load/unload.
- has a quick stow and go system for storing trekking poles on the go (possibly other things).
- the water bottle pockes on the side are angled so you don't have to remove the pack to get in/out of them with a little practice.
If any of those features sound good to you, you might want to compare the money you save buying this model on sale vs. holding out for the newer version.

I give it 4 stars since after a long time, if you aren't wearing anything heavier than a baselayer, the hip straps will tend to cut into you. Also the airframe is great for keeping your back cool except it greatly decreases the amount of space that you can pack in the pack. I would say it actually reduces the pack to about 45-46 liters. I would buy this again for the price and light weightedness.

I have the Medium size @ 3000 ci and if you store your sleeping bag and tent on the outside you should have all the room you need for a few days out in the country. The shoulder pads are a little on the thin side for weight savings but I think it's a great trade off to get the weight of the pack down. It's not like you'd use this pack for anything more than 2-3 days anyway. I also own a Gregory Whitney pack (95L) but I like the Osprey packs so much I'm returning my Gregory pack for the Argon 110L. Big fan of Osprey's!

The stupid concave back part is made of rough material so unless you are wearing a decent layer it will rub a hole in your back. My back still sweats with this ruck too its just a waste of space

The mouth of the ruck is way too small for a 50.

With the retarder hump or whatever its called. its hard to pack it so it doesnt stick 3 feet off your back. It is not streamline.

Took the new pack on 4 day backcountry hut trip and loved its light weight, great shovel pocket, comfortable ride. Belt pockets are handy for snax and gadgets, but would be better if one of them was water-tight. This pack was the envy of the trip.

This backpack is one of the most comfortable packs that I've ever used. Its weight to volume ratio is great: 3 pounds for 50 litres (its pretty hard to beat that). The only concern I had with buying this pack initially was the fact it was so light I thought it might not be durable enough (don't worry, its very durable). This pack has held up great to all sorts of trouble that I've put it through.
The only grip I have about it is the way the frame is built to create the ventilation chamber. It makes retrieving bulky things from the bottom of the pack difficult. It also makes carrying things like bear cans nearly impossible. Note: these grips wouldn't stop me from buying this pack again but this is the reason it didn't get a 5 star rating.
The things I like: The hip belt pockets are great to keep snacks, maps and other little things necessary for quick access. The hip belt itself is very comfortable and distributes the pack weight evenly. This thing weighs simply nothing by itself (love that). The ventilation chamber is great for hot days (and can be packed with gear). There is also a cool pouch for a hydration bladder and two outside pockets for water bottles (nalgenes fit great in these).
All in all this is a great backpack. I've had my pack seriously overloaded with winter gear and it still handled the load great!

I have this pack, but in the 65 L option, and I have been very pleased with my purchase. Some of the things that I enjoy about this back is how light it is. It weighs next to nothing. I also enjoy the ventilation mesh that rests up against your back so you don't sweat too much when you are hiking in the summer. Also, very roomy, I am able to carry all of the essentials and some. I was very pleased with the amount of pockets for extra gear outside of the main chamber. The hip pockets are great for things that require quick access (i.e. camera, knife, maps, or whatever you can think of that you would want quick access to). There are also many straps and clips for outside storage. The only downfall to this back is the frame system which takes away from the volume of the main chamber. Other than that this pack is fantastic. You will be pleased with the durability, comfort and versatility.

This is a good pack so far, I like how it fits and it has pretty good features for me. I like the fit too, it doesn't have thick padded straps which suits me fine.

At 57 years old and many years of backpacking I retired my old "heavy" pack and went for the Atmos 50. I have done 5 overnight trips with it so far and am delighted with it. It's light, carries well and has tons of places to keep gear. Although it is new it seems very durable and I found the straps comfortable from the start.

This pack is about the coolest thing going. It is really light weight and has great venting. I have been doing some hiking in the desert and this pack has been perfect. You can put an ton of gear in this thing. If you only have a little gear it compresses really nicely. This is the prefect day hiking or overnight pack. Nice work Osprey!

My wife carried this pack on her first backpacking trip (seven days in the Sierra Nevada) and loved it. Although it wasn't large enough to hold a bear canister, it did hold everything she needed. She like the adjustments, the cushy hip belt, the color, the durability and the two side, zippered pockets and two side, unzippered compartments. About the only improvements we could recommend is a different color for the main compartment straps (my Osprey has this and I love it) and longer straps at the bottom to hang a tent or sleeping mat. I carried a much large Osprey and we are both sold on the brand.

I've had this pack for almost 2 years and am generally pleased with it. It fits enough gear for a weekend overnight and I love the hip belt pockets for my camera and energy bars. My only complaint is that when the pack is fully loaded with gear, food, and water, the shoulder straps dig into my shoulders pretty hard. I guess you have to give up some comfort and padding if you want to keep the weight of the pack down.

This backpack was exactly what i was looking for my trip to Europe. It handled the flight being checked in and was comfortable to wear taking trains and walking through random cities. I would tell anyone to get this if they are looking for a ruck that isn't too big and still would like 4-5 days of gear along.

I've been using this backpack for the last year and a half, and I've come to love it.

It's super lightweight, durable, and comfortable to wear. In my experience, it works best for weekend trips, when your load isn't too heavy. They key to this pack is in the packing - if you take things out of their stuff sacks and pack them individually, you can get tons into it. 50L gives you plenty of room for 2-3 nights.

I'm 5'7" and the medium fits me perfectly.

If you're looking for a lightweight backpack that feels great when you're moving fast, get the Atmos 50.

It almost weighs nothing! Fabulous ventilation system, incredibly comfortable while carrying up on trails! Suitable for 3-4 days backpacking; I adapted external water bladder in order to fit all gear into main compartment.

This pack's shoulder straps and hip-belt are definitely some of the most comfortable I've come across. The springy-mesh action for the back panel looked pretty odd to me at first, but I quickly realized how great it is - hiking around in 100-degree heat without getting a full-on back sweat was great. The clip-close front pocket works well for stashing climbing shoes between routes, and front side pockets are great for snacks. The only things that really bother me are the hip-belt pockets - they stick out and bother my arms. No worries, though - a quick snip-snip and all is well.

I've been trying to slowly convert all my gear over to packing lite. This years money went into buying a pack. At three pounds for 50 liters, the Atmos 50 was on a short list. Although big enough for my gear (I had extra room), I couldn't get the bear can to fit inside! I was prepared to attach the can externally, but there were only limited options for doing so. I like the way it fit, but left me a little sore. Also, maybe I'm just frivolous, but It would be nicer if it had an external pocket that was a little safer from precipitation.

Found out while training for a climb that the shoulder straps dug into my clavicles on both sides, and one of the rear struts dug into my back. Had to buy dense 2" foam and pack cloth and make new padded shoulder straps. Sewed them onto the existing straps with upholstery thread. The pack also did not feel very roomy inside as compared to its external size. I did like the small pockets on the waist strap.

Found out while training for a climb that the shoulder straps cut into my clavicles on both sides. Had to buy dense 2" foam padding and pack cloth to make padded straps that went from the top of the shoulder all the way to the bottom of the strap. Sewed them onto the existing shoulder straps with upholstery thread. Go figure. Otherwise it is a good pack, but doesn't feel very roomy for it's external size.