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Osprey Packs
Aether 65L Backpack

5 out of 5 stars
2 Reviews


Size Chart


Why We Like The Aether 65L Backpack

The all-new Aether Backpacks boast Osprey's best-fitting systems so anyone can trek technical terrain comfortably, and the Aether 65 Backpack is the biggest in the bunch. Sized for weeklong trips and weekenders, the Aether 65 is a solid choice whether we're carrying heavier loads or just enough gear for a night. The back torso adjusts vertically to customize the fit for all sizes, and On-the-Fly shoulder strap and waist belt adjustments ensure quick-and-easy micro-adjustments that we can cinch on the trail. Osprey not only integrated a rain cover, but also treated the main fabric in DWR in case you don't get the cover on in time. A LightWire frame offers surprisingly stiff rigidity for how light the pack weighs, and Airscape mesh provides breathable ventilation on your back.


  • Perfect-fitting backpack built for weekenders and week-long treks
  • 65L is the biggest, standard Aether Backpack from Osprey
  • On-the-Fly shoulder and hip adjustments ensure a custom fit
  • LightWire frame with breathable Airscape back provides stability
  • DWR fabrication includes rain cover for greater weather protection
  • Compression straps ensure a secure load
  • Pocketing and straps offer storage for sleeping bags, pads, ice axes, trekking poles, water bottles, and more
  • Item #OSPZ18R
Responsible Collection
Bluesign Approved
420HD nylon, DWR coating
65L (3966cu in)
[frame] LightWire, [back panel] AirScape
Shoulder Straps
Waist Belt
Hydration Compatible
3L compatible
Reservoir Included
top, side zip
2 stretch mesh front, 2 zippered waist-belt, 2 stretch mesh side
Ice Axe Carry
Trekking Pole Carry
Sleeping Bag Compartment
removable straps, zippered devider compartment
Detachable Daypack
[upper] dual side straps, [lower] Inside-Out straps
Weight Capacity
36 - 60lb
32 x 15 x 12in
Claimed Weight
5lb 1.9oz
Manufacturer Warranty

Overall Rating

5 based on 2 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 2 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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5 out of 5 stars

August 24, 2021

Built for Life

I've put it through the wringer
Size Bought:
6' 2"

I first purchased this pack in fall of 2015, and have used it on every backpacking trip I've been on since Including working as a backpacking guide for the entire summer season. This pack without question is built to last. The on the go adjustments are easy and simple. Depending on the challenge and group size for your next adventure, This pack can easily handle up to 5 days worth of food and supplies. The only maintenance I have done in 5 years is replace the hip belt because I outgrew the original one that came with it.

user image
Connori D
Veronica DGearhead
5 out of 5 stars

August 6, 2021

Osprey Packs Aether 65L Backpack

I've put it through the wringer
Size Bought:
5' 3"

I have put this pack through the ringer and I absolutely love using it on longer trips that require a heavier load. I also own the previous version that has the anti-gravity suspension system and plan to have both for a very long time. This pack is using an AirScape back panel instead, which is not as functional as the AG system but still has a nice breathable foam and mesh that keeps you cool in hotter temperatures. The material is very durable and meant to last but is a bit heavy at 5lbs and 1.9ozs. Osprey has been around for a bit now and I feel like they have really honed in long-term comfort with the amount of adjustability they give you on this pack. Also, lots of attachment points for your dog mat, trekking poles, ice axes, etc. In addition, if you are like me and like to get to camp early, then hike around after some lunch, the detachable daypack comes in handy big time. You can bring the essentials and store your reservoir in it instead of carrying around a water bottle or bringing your entire pack.