RYU Quick Pack 18L vs. haize project Clamshell 25

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

RYU Quick Pack 18L

Front facing view of the RYU Quick Pack 18L
Capacity18 L
Weight0 kg
Dimensions52×28×17 cm
Airline fit89%
Price$170

Feature by feature

RYU Quick Pack 18LFeaturehaize project Clamshell 25
Storage
Compression 4
None Expanded Capacity None
0 Opening 1
top Passport top
N Passthrough N
Carry
Backpack Y
Hip Belt N
removable Sternum Strap removable
Inside
15in Laptop 15in
4 Main Compartments 4
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
Water Bottle Holder 1, side
Y Water Resistant Y
Material
630D Nylon with Polyurethane coating1680D RPET polyurethane

haize project Clamshell 25

Front facing view of the haize project Clamshell 25
Capacity25 L
Weight1.4 kg
Dimensions50×29×17 cm
Airline fit92%
Price$333

Key differences between the RYU Quick Pack 18L and haize project Clamshell 25

Both have: passport pocket, sternum strap, laptop sleeve, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 167 accept both. 1 accept only the RYU Quick Pack 18L, and 6 accept only the haize project Clamshell 25.

Only the RYU Quick Pack 18L fits

Great Lakes Airlines.

Only the haize project Clamshell 25 fits

Air Niugini, Belavia, Etihad Airways, Oman Air, Qatar Airways, Royal Jordanian.

RYU Quick Pack 18L vs. haize project Clamshell 25: which should you pack?

The haize project Clamshell 25 carries 7L more than the RYU Quick Pack 18L (18L vs. 25L), and the two are closely matched on weight. For carry-on flexibility, the haize project Clamshell 25 fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the haize project Clamshell 25; if you want to travel lighter, the haize project Clamshell 25 is the better call.