Samsonite EcoDiver Travel Backpack M vs. haize project Clamshell 25

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

Samsonite EcoDiver Travel Backpack M

Front facing view of the Samsonite EcoDiver Travel Backpack M
Capacity33 L
Weight1.1 kg
Dimensions45×36×20 cm
Airline fit86%
Price$230

Feature by feature

Samsonite EcoDiver Travel Backpack MFeaturehaize project Clamshell 25
Storage
4 Compression 4
None Expanded Capacity None
1 Opening 1
top Passport top
N Passthrough N
Carry
Y Backpack Y
N Hip Belt N
Y Sternum Strap removable
Inside
17in Laptop 15in
4 Main Compartments 4
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
1, side Water Bottle Holder 1, side
Y Water Resistant Y
Material
Recyclex™ textiles with a water-repellent 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 Samsonite EcoDiver Travel Backpack M and haize project Clamshell 25

Both have: compression straps, passport pocket, backpack straps, 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. 158 accept both. 4 accept only the Samsonite EcoDiver Travel Backpack M, and 15 accept only the haize project Clamshell 25.

Only the Samsonite EcoDiver Travel Backpack M fits

American Eagle, easyJet, Gulf Air, Ravn Alaska.

Only the haize project Clamshell 25 fits

Aerolineas Argentinas, Air France, Air India, Air Mauritius, Air Niugini, Boliviana de Aviacion, Cayman Airways, flybe, Indigo, InselAir, Jet Airways, Kenya Airways, KLM, LATAM , Sky Airlines.

Samsonite EcoDiver Travel Backpack M vs. haize project Clamshell 25: which should you pack?

The Samsonite EcoDiver Travel Backpack M carries 8L more than the haize project Clamshell 25 (33L vs. 25L), while the Samsonite EcoDiver Travel Backpack M is the lighter pack at 1.1kg (vs. 1.4kg). 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 Samsonite EcoDiver Travel Backpack M; if you want to travel lighter, the Samsonite EcoDiver Travel Backpack M is the better call.