Amazon Basics Ultralight Portable Packable Day Pack vs. Kathmandu Cotinga Kid's Pack

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

Amazon Basics Ultralight Portable Packable Day Pack

Front facing view of the Amazon Basics Ultralight Portable Packable Day Pack
Capacity27 L
Weight158.8 kg
Dimensions44.5×29.2×19.1 cm
Airline fit95%
Price$20

Feature by feature

Amazon Basics Ultralight Portable Packable Day PackFeatureKathmandu Cotinga Kid's Pack
Storage
Y Compression Y
None Expanded Capacity None
4 Opening 4
N Passport N
N Passthrough N
Carry
Y Backpack Y
N Hip Belt N
N Sternum Strap N
Inside
N Laptop N
1 Main Compartments 1
N Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
1 Water Bottle Holder 1
Y Water Resistant Y
Material
Nylon100% Polyester

Kathmandu Cotinga Kid's Pack

Front facing view of the Kathmandu Cotinga Kid's Pack
Capacity20 L
Weight0.42 kg
Dimensions41×27×20.5 cm
Airline fit76%
Price$60

Key differences between the Amazon Basics Ultralight Portable Packable Day Pack and Kathmandu Cotinga Kid's Pack

Both have: compression straps, 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. 143 accept both. 37 accept only the Amazon Basics Ultralight Portable Packable Day Pack, and 1 accept only the Kathmandu Cotinga Kid's Pack.

Only the Amazon Basics Ultralight Portable Packable Day Pack fits

Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Air Tahiti, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, easyJet, Emirates Airlines, Enter Air, flybe, Icelandair, InselAir, Juneyao 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 Kathmandu Cotinga Kid's Pack fits

Great Lakes Airlines.

Amazon Basics Ultralight Portable Packable Day Pack vs. Kathmandu Cotinga Kid's Pack: which should you pack?

The Amazon Basics Ultralight Portable Packable Day Pack carries 7L more than the Kathmandu Cotinga Kid's Pack (27L vs. 20L), while the Kathmandu Cotinga Kid's Pack is the lighter pack at 0.42kg (vs. 158.8kg). For carry-on flexibility, the Amazon Basics Ultralight Portable Packable Day Pack fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Amazon Basics Ultralight Portable Packable Day Pack; if you want to travel lighter, the Kathmandu Cotinga Kid's Pack is the better call.