United by Blue (R)evolution 25L Convertible Carryall vs. Lowe Alpine AT Lightflite Carry-on

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

United by Blue (R)evolution 25L Convertible Carryall

Capacity25 L
Weight0 kg
Dimensions39×34×13 cm
Airline fit96%
Price$120

Feature by feature

United by Blue (R)evolution 25L Convertible CarryallFeatureLowe Alpine AT Lightflite Carry-on
Storage
N Compression
None Expanded Capacity None
0 Opening 0
front Passport top
N Passthrough N
Carry
hideable Backpack hideable
N Hip Belt N
removable Sternum Strap N
Inside
15in Laptop
2 Main Compartments 2
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder
Y Water Resistant Y
Material

Lowe Alpine AT Lightflite Carry-on

Front facing view of the Lowe Alpine AT Lightflite Carry-on
Capacity40 L
Weight0.8 kg
Dimensions51×36×21 cm
Airline fit66%
Price$110

Key differences between the United by Blue (R)evolution 25L Convertible Carryall and Lowe Alpine AT Lightflite Carry-on

Both have: backpack straps, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 124 accept both. 57 accept only the United by Blue (R)evolution 25L Convertible Carryall, and 0 accept only the Lowe Alpine AT Lightflite Carry-on.

Only the United by Blue (R)evolution 25L Convertible Carryall fits

Aerolineas Argentinas, Air Baltic, Air China, Air France, Air India, Air Malta, Air Mauritius, Air Serbia, Air Seychelles, Air Tahiti, American Eagle, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Boliviana de Aviacion, Bulgaria Air, Cayman Airways, China Eastern, easyJet, Emirates Airlines, Enter Air, Etihad Airways, flybe, Gulf Air, Icelandair, Indigo, InselAir, Jet Airways, Juneyao Airlines, Kenya Airways, KLM, LATAM , Luxair, Meridiana Fly, Nordwind Airlines, Qatar Airways, Ravn Alaska, Regional Express, Royal Brunei Airlines, Ryanair, S7, Shandong Airlines, Shenzhen Airlines, Sky Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Virgin Australia, VivaColombia, Volaris, Volotea, Xiamen.

United by Blue (R)evolution 25L Convertible Carryall vs. Lowe Alpine AT Lightflite Carry-on: which should you pack?

The Lowe Alpine AT Lightflite Carry-on carries 15L more than the United by Blue (R)evolution 25L Convertible Carryall (25L vs. 40L), and the two are closely matched on weight. For carry-on flexibility, the United by Blue (R)evolution 25L Convertible Carryall fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Lowe Alpine AT Lightflite Carry-on; if you want to travel lighter, the Lowe Alpine AT Lightflite Carry-on is the better call.