Lowe Alpine AT Lightflite Carry-on vs. Topo Designs Trip

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

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

Feature by feature

Lowe Alpine AT Lightflite Carry-onFeatureTopo Designs Trip
Storage
Compression N
None Expanded Capacity None
0 Opening 0
top Passport front
N Passthrough N
Carry
hideable Backpack Y
N Hip Belt N
N Sternum Strap N
Inside
Laptop 11in
2 Main Compartments 2
N Organizer N
Outside
× Hard Shell ×
N Rain-fly N
Water Bottle Holder N
Y Water Resistant Y
Material

Topo Designs Trip

Front facing view of the Topo Designs Trip
Capacity8.4 L
Weight0.5 kg
Dimensions41×21×11 cm
Airline fit96%
Price$170

Key differences between the Lowe Alpine AT Lightflite Carry-on and Topo Designs Trip

Both have: 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. 0 accept only the Lowe Alpine AT Lightflite Carry-on, and 57 accept only the Topo Designs Trip.

Only the Topo Designs Trip fits

Aerolineas Argentinas, Air Baltic, Air China, Air France, Air India, Air Malta, Air Mauritius, Air Niugini, 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, Great Lakes Airlines, 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, Volotea, Xiamen.

Lowe Alpine AT Lightflite Carry-on vs. Topo Designs Trip: which should you pack?

The Lowe Alpine AT Lightflite Carry-on carries 31.6L more than the Topo Designs Trip (40L vs. 8.4L), while the Topo Designs Trip is the lighter pack at 0.5kg (vs. 0.8kg). For carry-on flexibility, the Topo Designs Trip 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 Topo Designs Trip is the better call.