Osprey Manta 34 vs. Osprey Aether 55

Two carry-on travel backpacks, compared spec for spec.

Osprey Manta 34

Front facing view of the Osprey Manta 34
Capacity34 L
Weight1.4 kg
Dimensions62×35×28 cm
Airline fit2%
Price$220

Feature by feature

Osprey Manta 34FeatureOsprey Aether 55
Storage
4 Compression >5
None Expanded Capacity None
1 Opening 0
top Passport top
N Passthrough N
Carry
Y Backpack Y
Y Hip Belt Y
Y Sternum Strap Y
Inside
N Laptop N
4 Main Compartments 4
Y Organizer N
Outside
× Hard Shell ×
Y Rain-fly Y
2, side Water Bottle Holder 2, side
Y Water Resistant Y
Material
bluesign® APPROVED 100% recycled 210D high-tenacity honey comb contrast nylon, DWR treatments made without PFASbluesign® APPROVED 420HD nylon packcloth, PFC-free DWR

Osprey Aether 55

Capacity55 L
Weight2.2 kg
Dimensions83×38×25 cm
Airline fit1%
Price$325

Key differences between the Osprey Manta 34 and Osprey Aether 55

Both have: passport pocket, backpack straps, hip belt, sternum strap, rain cover, water bottle pockets, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 1 accept both. 2 accept only the Osprey Manta 34, and 0 accept only the Osprey Aether 55.

Only the Osprey Manta 34 fits

Island Air, Virgin America.

Osprey Manta 34 vs. Osprey Aether 55: which should you pack?

The Osprey Aether 55 carries 21L more than the Osprey Manta 34 (34L vs. 55L), while the Osprey Manta 34 is the lighter pack at 1.4kg (vs. 2.2kg). For carry-on flexibility, the Osprey Manta 34 fits 2% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Osprey Aether 55; if you want to travel lighter, the Osprey Manta 34 is the better call.