Tortuga Daypack Pro vs. Portland Gear Cascade Backpack Standard

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

Tortuga Daypack Pro

Front facing view of the Tortuga Daypack Pro
Capacity21 L
Weight0.5 kg
Dimensions44×30×17 cm
Airline fit95%
Price$125

Feature by feature

Tortuga Daypack ProFeaturePortland Gear Cascade Backpack Standard
Storage
N Compression N
None Expanded Capacity None
0 Opening 0
top Passport side
N Passthrough Y
Carry
Y Backpack Y
N Hip Belt N
Y Sternum Strap Y
Inside
16in Laptop 15in
2 Main Compartments 2
N Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 2, side
Y Water Resistant Y
Material
ECOPAK™ EPX70RS waterproof sailcloth100% polyester with TPU matte coating

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

Key differences between the Tortuga Daypack Pro and Portland Gear Cascade Backpack Standard

Both have: backpack straps, sternum strap, 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. 141 accept both. 39 accept only the Tortuga Daypack Pro, and 1 accept only the Portland Gear Cascade Backpack Standard.

Only the Tortuga Daypack Pro fits

Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Air Tahiti, American Eagle, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, easyJet, 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.

Only the Portland Gear Cascade Backpack Standard fits

Great Lakes Airlines.

Tortuga Daypack Pro vs. Portland Gear Cascade Backpack Standard: which should you pack?

The Tortuga Daypack Pro carries the same capacity as the Portland Gear Cascade Backpack Standard (21L vs. 21L), while the Tortuga Daypack Pro is the lighter pack at 0.5kg (vs. 1.1kg). For carry-on flexibility, the Tortuga Daypack Pro fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Tortuga Daypack Pro; if you want to travel lighter, the Tortuga Daypack Pro is the better call.