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Osprey Aether 55 backpack 2025

When you arrive at the beginning of the trail, you are perfectly prepared and expect the same level of preparation and reliability from your backpack: the Aether 55 will not let you down. Custom Fit-on-the-Fly® Shoulder Straps and Hipbelt, and an adjustable torso provide a near-perfect fit while an injection-molded backpanel offers close-to-body performance. Made with bluesign® approved nylon and PFC-free DWR. Raincover included.

Custom fit
A customizable Fit-on-the-Fly belt, a customizable Fit-on-the-Fly shoulder strap and adjustable torso length provide a perfect fit for bodies of all shapes and sizes.

Suspension airscape
The AirScapeTM back panel, injection moulded foam, creates a snug and breathable fit.

Load capacity
Designed to provide a stable transport close to the body, ideal for handling heavier loads when the route becomes intense.

Sustainable materials
Made of high quality nylon approved by bluesign®, with DWR without PFC.


Features

  • Included raincover made with PFC-free DWR and bluesign®-approved materials
  • Large front panel zip access to main compartment
  • Floating top lid with lash points
  • Fabric reinforced front shove-it pocket
  • Large dual-access stretch mesh side water bottle pockets
  • Dual upper/lower side compression straps
  • Dual front panel compression straps with StraightJacket compression
  • Dual zippered hipbelt pockets
  • Dual ice axe loops with bungee tie-offs
  • Zippered sleeping bag compartment with removable divider
  • Removable sleeping pad strap
  • Internal hydration reservoir sleeve
  • Anchor loops for an optional Osprey Daylite® daypack for short forays.


Technical specifications

  • Volume: 58 L (l-xl),
  • Dimensions: 83h x 38w x 25d cm (l-xl)
  • Composition: bluesign® approved nylon fabric, DWR without PFC
  • Manufacturer weight: 2,209 KG (l-xl).