Mammut Lithium 30 vs. Osprey Sportlite 25

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

Mammut Lithium 30

Front facing view of the Mammut Lithium 30
Capacity30 L
Weight0.9 kg
Dimensions54×26×24 cm
Airline fit40%
Price$160

Feature by feature

Mammut Lithium 30FeatureOsprey Sportlite 25
Storage
5 Compression 3
None Expanded Capacity None
0 Opening 0
top Passport top
N Passthrough N
Carry
Y Backpack Y
Y Hip Belt Y
removable Sternum Strap Y
Inside
N Laptop N
2 Main Compartments 3
N Organizer N
Outside
× Hard Shell ×
Y Rain-fly N
2, side Water Bottle Holder 2, side
Y Water Resistant Y
Material
100% Polyamide, Bluesign, PFC free, recycledbluesign®100D recycled high tenacity bird eye nylon, PFC/PFAS-free DWR

Osprey Sportlite 25

Front facing view of the Osprey Sportlite 25
Capacity25 L
Weight0.8 kg
Dimensions49×30×24 cm
Airline fit41%
Price$125

Key differences between the Mammut Lithium 30 and Osprey Sportlite 25

Both have: passport pocket, backpack straps, hip belt, 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. 74 accept both. 1 accept only the Mammut Lithium 30, and 3 accept only the Osprey Sportlite 25.

Only the Mammut Lithium 30 fits

Great Lakes Airlines.

Only the Osprey Sportlite 25 fits

Etihad Airways, Oman Air, Qatar Airways.

Mammut Lithium 30 vs. Osprey Sportlite 25: which should you pack?

The Mammut Lithium 30 carries 5L more than the Osprey Sportlite 25 (30L vs. 25L), while the Osprey Sportlite 25 is the lighter pack at 0.8kg (vs. 0.9kg). For carry-on flexibility, the Osprey Sportlite 25 fits 41% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Mammut Lithium 30; if you want to travel lighter, the Osprey Sportlite 25 is the better call.