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Best Overall

Osprey Atmos AG LT 65

The suspended mesh back panel wraps onto the hip belt for unmatched comfort on multi-day trips. Lighter than the standard Atmos AG while keeping all the features that make Osprey the trail standard.

$300-$320
Pros
  • Suspended mesh back panel wraps onto hip belt for class-leading ventilation and comfort
  • ~0.5 lb lighter than standard Atmos AG 65 at 4.2 lbs measured weight
  • 65L capacity with lid, front mesh pocket, side water bottle pockets, and hip belt pockets
  • External straps for attaching foam sleeping pads; side zipper for easy access
Cons
  • At 4.2 lbs, heavier than ultralight options like the Granite Gear Blaze or Hyperlite Southwest
  • Premium price tag around $320
  • Less feature-rich than the standard Atmos AG 65 (fewer pockets, less adjustability)
Why we recommend it

If you only buy one backpacking pack, this is it. The Anti-Gravity suspension is genuinely different from everything else — testers describe it as a 'hug,' and after miles on trail, that's not hyperbole.

What the community says

I use an osprey atmos 50L for my overnights and a Gregory for my day hikes. Love them both.

r/hikinggear · read thread →

For multi-day backpacking with a loaded pack, the $150+ ones are worth it. You can often find Osprey/Gregory on sale though, REI has good sales and their Co-op line is solid for the price.

r/CampingandHiking · read thread →
What the experts said

It feels like the pack is giving me a hug. I often dread putting on a heavy backpacking pack, but this load-hauling machine feels like the loving embrace of a close friend.

OutdoorGearLab · read full review →

The Atmos AG deftly balances comfort, organization, and durability. The attention grabber is the 'Anti-Gravity' suspended mesh backpanel, which replaces the protruding foam found on more traditional designs to maximize both ventilation and comfort.

Switchback Travel · read full review →

The beloved Osprey Aura AG 50 and Atmos AG 50 are about as common as dandelions, and for good reason. Devotees praise the innovative AntiGravity suspension system, which makes bigger loads feel almost weightless during multi-night trips.

REI Expert Advice · read full review →