We’ve read the reviews across the web for the Osprey Packs Atmos AG 50L, 65L Backpack and summarize the results below:

Universal Ranking

PeakScore: 94 (out of 100) 
User Rating: 4.8 stars   
Expert Rating: 4.5 stars
Number of Ratings Reviewed: 78

Pros & Cons

Reasons to buy:

User Reviews

• The Anti-Gravity system is not a gimmick.
• The pack really does feel like it’s floating on your back.
• Excellent ventilation.
• Loaded with well thought out features.
• Great for 4 season use.
• Fit is adjustable.
• So good at carrying heavy loads that it turns backpacking into a pleasure.
• Side water bottle pockets are super convenient and easy to use.
• Great for all types of outdoor adventures, ranging from backpacking to ski mountaineering.
• The anti-gravity system is truly unbelievable.
• By far the best backpacking pack I’ve ever owned.

Expert Reviews

• Exceptionally comfortable.
• Excellent organization, ventilation, and great pockets.
• The shoulder straps are incredibly comfortable.
• The anti-gravity system effectively spreads the load out across your back and hips.
• Compared to similar packs, it is about average weight with well above average performance.
• Well-designed storage, durable, and the suspension of weight by the anti-gravity system is unbelievable.
• This could be the most comfortable backpack ever made.

Reasons NOT to buy:

User Reviews

• Doesn’t carry extremely heavy loads as well.
• The outside pockets on the back are hard to fill if the main pack compartment is already full.
• Can be challenging to get the fit just right with the anti-gravity system.
• The hip belt is somewhat limited in the sizes it can accommodate.
• Hip belt pockets can be hard to unzip.
• Volume feels like it is actually less than is advertised.
• Sleeping bag compartment is too small for large sleeping bags.
• The top horizontal frame bar can hit the back of your head if you look up.
• Fitting a bear canister can be tight.
• Fabric not as tough as arcteryx bora.
• I would prefer that the two large pockets on the back of the pack were instead a part of the main compartment. I keep thinking about cutting a hole through the internal material to join them all together into one big pocket inside.
• Pack sometimes squeaks.
• The top (“brain”) can’t be used as a daypack.

Expert Reviews

• Not great at carrying extremely heavy loads.
• It is a little on the heavy side.
• Cluttered with too many zippers and straps.
• Attaching bulky gear to the outside is difficult.

Summary:

The Osprey Packs Atmos AG Backpack just might be the most comfortable pack ever made. The ease and comfort with which this pack carries loads is exceptional. For backpackers prioritizing a pack that carries loads comfortably, the Atmos is the clear choice.

Multimedia:

Note: User rankings were reviewed across the web and expert rankings were reviewed on sectionhiker, backpackers, outdoorgearlab.