Portland Gear Cascade Backpack Standard vs. Aer Pro Pack 24L

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

Portland Gear Cascade Backpack Standard

Front facing view of the Portland Gear Cascade Backpack Standard
Capacity21 L
Weight1.1 kg
Dimensions41×28×22 cm
Airline fit75%
Price$110

Feature by feature

Portland Gear Cascade Backpack StandardFeatureAer Pro Pack 24L
Storage
N Compression N
None Expanded Capacity None
0 Opening 1
side Passport top
Y Passthrough Y
Carry
Y Backpack Y
N Hip Belt N
Y Sternum Strap Y
Inside
15in Laptop 16in
2 Main Compartments 4
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 2, side
Y Water Resistant Y
Material
100% polyester with TPU matte coating840D CORDURA re/cor recycled nylon

Aer Pro Pack 24L

by Aer
Front facing view of the Aer Pro Pack 24L
Capacity24 L
Weight1.3 kg
Dimensions47×32×19 cm
Airline fit92%
Price$200

Key differences between the Portland Gear Cascade Backpack Standard and Aer Pro Pack 24L

Both have: luggage passthrough, backpack straps, sternum strap, built-in organizer, 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. 139 accept both. 3 accept only the Portland Gear Cascade Backpack Standard, and 35 accept only the Aer Pro Pack 24L.

Only the Portland Gear Cascade Backpack Standard fits

Great Lakes Airlines, Gulf Air, Ravn Alaska.

Only the Aer Pro Pack 24L fits

Air Baltic, Air China, Air Malta, 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, 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.

Portland Gear Cascade Backpack Standard vs. Aer Pro Pack 24L: which should you pack?

The Aer Pro Pack 24L carries 3L more than the Portland Gear Cascade Backpack Standard (21L vs. 24L), while the Portland Gear Cascade Backpack Standard is the lighter pack at 1.1kg (vs. 1.3kg). For carry-on flexibility, the Aer Pro Pack 24L fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Aer Pro Pack 24L; if you want to travel lighter, the Portland Gear Cascade Backpack Standard is the better call.