I was a little hesitant buying this without ever trying it, but my fears were calmed after the first trip with this bad boy.
The shoulder and hip belts are extremely comfortable, and the little holes in them help from getting too sweaty under the straps. Super durable material, sheds water well too.
My only vice with this pack is that it's not very expandable, the pack material doesn't stretch much, so if you have a big load, you most likely will be strapping stuff on the outside. It's nice though because it makes you cut back on unnecessary items. overall, excellent pack, lightweight, bomber construction. buy it with confidence

I got this for use as a summit pack and got this for the ultralight weight, although it barely fill the role. Construction is top notch as is all Osprey packs, and it will definitely last forever. Zippers have great pull loops that stay open and are easy to use with gloves. I will probably replace it with something else later as the curvy back might be great for hiking in the heat, but it just collects snow on Alpine runs. I would also point out that although it says 65 liters, it feels a lot smaller because of the curve pushing into the bag space. Makes packing more difficult. The 2009 version have changed this by having far less curve, so maybe it's better. I wouldn't plan on doing more than 3 days with this pack unless it's warm and you aren't packing many layers. Only Osprey pack I have owned that I regret at the moment. If I had it to do over I would probably buy the Osprey Variant but then again I wanted a summit pack and that didn't exist at the time. Too bad Osprey won't let me trade up.

As usual, as with all Osprey packs, attention to detail and construction on the Atoms 65 is excellent. For me, Fit was a little bit of a problem. I'm an "in-betweener". My waist is now all the way up to a 35 (winter was brutal on my figure!) and my torso length runs 19 to 21 depending on how I'm measured. AFter exchanging packs a couple of times, I decided the Large was my best option.
I just recently did a 3 day trip and found the pack to be good, but not great. For me, the pack became uncomfortable when loaded above 33 lbs. The belt just doesn't seem to be enough... above 33 lbs the pack transfers more weight than I like to my shoulders. The ventilated back mesh does its job; No sweaty back with this pack! I found the bag allowed better organization through the use of it's many pockets! I especially liked having the option of hanging my reservoir either directly behind the back mesh (where it takes up no pack envelope space), or in the traditional spot inside the bag. Nice Pack... might have been a 5 star pack if I wasn't an in-betweener. Note: This pack is NOT an adjustable torso length type.

Recently got this bag for spring and summer. Its very comfortable and hauls gear for three or four days. I wouldn't go much over forty pounds, but thats not what it was made for. Really like the trekking pole feature and the outside pockets are perfect for rain gear.

Very comfortable and light. Has a lot of useful pockets and features. Only complaint is the curvature of the back makes the main storage compartment a limited. With a sleeping bag, pad and bear canister inside, there isn't much room for other stuff.

I bought this pack for extended trips. I love the weight, suspension, numerous pockets, hip pockets, and mesh back. I have used a 2L camelbak bladder in it and it works great. Sorry to Osprey move their productions overseas, but I guess it had to happen to keep costs in line with competition.