Osprey Aether 55 Pack - Men's

Color: Deep Water Blue
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When you're hauling weight for days in the wild, the durable, lightweight design and fine-tuned, customizable fit of the men's Osprey Aether 55 pack help you to carry the load in comfort.


  • With an adjustable torso length and custom Fit-on-the-Fly™ shoulder straps and hipbelt, this pack offers a fine-tuned fit for a variety of shapes and sizes
  • Injection-molded AirScape™ back panel and mesh-padded shoulder straps offer next-to-body comfort
  • Durable fabric is treated with a PFC-free DWR (durable water repellent); fabric is made with bluesign®-approved materials
  • Raincover with a PFC-free DWR treatment keeps your pack and contents covered in foul weather; raincover is made with bluesign®-approved materials
  • Large front panel zipper allows easy access to the main compartment; floating top lid with lash points enables access from above
  • Fabric-reinforced front shove-it pocket is ideal for raingear or pack-out materials
  • Dual-access stretch-mesh side water bottle pockets
  • Dual upper and lower side compression straps secure contents along the edges to balance weight and prevent shifting
  • Dual front panel compression straps with StraightJacket compression secure contents to better center your balance
  • 2 zippered hipbelt pockets provide easy, convenient access to phones, GPS devices, battery packs and more
  • Dual ice axe loops with bungee tie-offs secure climbing gear and extra tools needed in the backcountry
  • Zippered compartment for a sleeping bag includes a removable divider to separate contents
  • Sleeping pad straps can be removed
  • Internal hydration reservoir sleeve (reservoir not included)
  • Anchor loops attach an optional Osprey Daylite® daypack for short forays (Daylite pack not included)


View the Osprey Aether Product LineView all Osprey Backpacking Packs

Technical Specs

Best Use


Frame Type

Internal Frame

Gear Capacity (L)

S/M: 55 liters

L/XL: 58 liters

Gear Capacity (cu. in.)

S/M: 3,356 cubic inches

L/XL: 3,539 cubic inches


S/M: 5 lbs.

L/XL: 5 lbs. 1 oz.

Adjustable Torso Length


Fits Torso Length (in.)

S/M: 17-20.5 inches

L/XL: 19.5-23 inches

Fits Waist/Hips

S/M: 28-50 inches

L/XL: 30-55 inches


420HD nylon packcloth; 210-denier nylon Diamond (bluesign®-approved)

Frame Material

3.5 mm LightWire peripheral frame

Number of Stays

1 peripheral hoop

Reservoir Compatible


Pack Access


Number of Exterior Pockets

7 + main compartment

Sleeping Bag Compartment


Raincover Included


Hipbelt Pockets



31 x 15 x 10 inches




Contains materials that meet the bluesign® criteria

24 reviews with an average rating of 4.4 out of 5 stars

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