Cotopaxi Allpa 28 vs. Nomatic Travel Backpack

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

Cotopaxi Allpa 28

Front facing view of the Cotopaxi Allpa 28
Capacity28 L
Weight1 kg
Dimensions48×30×23 cm
Airline fit73%
Price$200

Feature by feature

Cotopaxi Allpa 28FeatureNomatic Travel Backpack
Storage
N Compression N
None Expanded Capacity None
1 Opening 1
side Passport back
Y Passthrough Y
Carry
hideable Backpack hideable
hideable Hip Belt N
Y Sternum Strap Y
Inside
15in Laptop 15in
4 Main Compartments 4
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
1, side Water Bottle Holder 2, side
Y Water Resistant Y
Material
100% recycled 840D TPU-coated nylonWaterproof tarpaulin

Nomatic Travel Backpack

Front facing view of the Nomatic Travel Backpack
Capacity20 L
Weight1.8 kg
Dimensions47×30×13 cm
Airline fit93%
Price$330

Key differences between the Cotopaxi Allpa 28 and Nomatic Travel Backpack

Both have: luggage passthrough, backpack straps, 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. 138 accept both. 0 accept only the Cotopaxi Allpa 28, and 37 accept only the Nomatic Travel Backpack.

Only the Nomatic Travel Backpack fits

Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, Emirates Airlines, Enter Air, flybe, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Pakistan International, Royal Brunei Airlines, Ryanair, S7, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Volotea, Xiamen.

Cotopaxi Allpa 28 vs. Nomatic Travel Backpack: which should you pack?

The Cotopaxi Allpa 28 carries 8L more than the Nomatic Travel Backpack (28L vs. 20L), while the Cotopaxi Allpa 28 is the lighter pack at 1kg (vs. 1.8kg). For carry-on flexibility, the Nomatic Travel Backpack fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Cotopaxi Allpa 28; if you want to travel lighter, the Cotopaxi Allpa 28 is the better call.