Osprey Sirrus 24 vs. Deuter Aircontact Lite 40+10

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

Osprey Sirrus 24

Front facing view of the Osprey Sirrus 24
Capacity24 L
Weight1.2 kg
Dimensions55×34×24 cm
Airline fit39%
Price$180

Feature by feature

Osprey Sirrus 24FeatureDeuter Aircontact Lite 40+10
Storage
4 Compression 5
None Expanded Capacity None
0 Opening 0
top Passport top
N Passthrough N
Carry
Y Backpack Y
Y Hip Belt Y
Y Sternum Strap Y
Inside
N Laptop N
3 Main Compartments 3
N Organizer N
Outside
× Hard Shell ×
Y Rain-fly N
2, side Water Bottle Holder 2, side
N Water Resistant Y
Material
bluesign® APPROVED 210D recycled honey comb nylon, PFC/PFAS-free DWR140D Polyester RIPSTOP

Deuter Aircontact Lite 40+10

Capacity50 L
Weight1.6 kg
Dimensions53×31×25 cm
Airline fit39%
Price$215

Key differences between the Osprey Sirrus 24 and Deuter Aircontact Lite 40+10

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

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 72 accept both. 1 accept only the Osprey Sirrus 24, and 1 accept only the Deuter Aircontact Lite 40+10.

Only the Osprey Sirrus 24 fits

Aer Lingus.

Only the Deuter Aircontact Lite 40+10 fits

Croatia Air.

Osprey Sirrus 24 vs. Deuter Aircontact Lite 40+10: which should you pack?

The Deuter Aircontact Lite 40+10 carries 26L more than the Osprey Sirrus 24 (24L vs. 50L), while the Osprey Sirrus 24 is the lighter pack at 1.2kg (vs. 1.6kg). For carry-on flexibility, the Osprey Sirrus 24 fits 39% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Deuter Aircontact Lite 40+10; if you want to travel lighter, the Osprey Sirrus 24 is the better call.