Osprey Quasar 26 vs. Peak Design Travel Backpack 45L

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

Osprey Quasar 26

Capacity36 L
Weight1.3 kg
Dimensions50×35×27 cm
Airline fit14%
Price$200

Feature by feature

Osprey Quasar 26FeaturePeak Design Travel Backpack 45L
Storage
N Compression 1
None Expanded Capacity 45L
1 Opening 1
top Passport top
Y Passthrough Y
Carry
hideable Backpack hideable
hideable Hip Belt hideable
Y Sternum Strap removable
Inside
16in Laptop 16in
4 Main Compartments 7
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
N Water Bottle Holder 2, side
Y Water Resistant Y
Material
450D recycled polyester TPU coatedshell: Weatherproof 400D nylon canvas bottom: 900D nylon weatherproof zippers

Peak Design Travel Backpack 45L

Front facing view of the Peak Design Travel Backpack 45L
Capacity35 L
Weight2.1 kg
Dimensions56×33×24 cm
Airline fit26%
Price$300

Key differences between the Osprey Quasar 26 and Peak Design Travel Backpack 45L

Both have: passport pocket, luggage passthrough, backpack straps, hip belt, laptop sleeve, built-in organizer, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 26 accept both. 1 accept only the Osprey Quasar 26, and 23 accept only the Peak Design Travel Backpack 45L.

Only the Osprey Quasar 26 fits

Croatia Air.

Only the Peak Design Travel Backpack 45L fits

Aegean Airlines, Air Astana, Air Nostrum, Atlas Global, British Airways, Conviasa, Copa Airlines, EL AL, Finnair, Frontier Airlines, Iran Aseman Air, Jet2, Kuwait Air, Middle East Airlines, Monarch Airlines, Onur Air, PenAir, Southwest Airlines, Spirit Airlines, Thai Airways, Travel Service Airlines, Uzbekistan Air, WOW Airlines.

Osprey Quasar 26 vs. Peak Design Travel Backpack 45L: which should you pack?

The Osprey Quasar 26 carries 1L more than the Peak Design Travel Backpack 45L (36L vs. 35L), while the Osprey Quasar 26 is the lighter pack at 1.3kg (vs. 2.1kg). For carry-on flexibility, the Peak Design Travel Backpack 45L fits 26% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Osprey Quasar 26; if you want to travel lighter, the Osprey Quasar 26 is the better call.