Tom Bihn Smart Alec vs. ILE Transit 25L

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

Tom Bihn Smart Alec

Front facing view of the Tom Bihn Smart Alec
Capacity26 L
Weight0.9 kg
Dimensions47×30×21 cm
Airline fit74%
Price$190

Feature by feature

Tom Bihn Smart AlecFeatureILE Transit 25L
Storage
N Compression N
None Expanded Capacity None
0 Opening 2
Passport N
N Passthrough N
Carry
Y Backpack Y
removable Hip Belt removable
removable Sternum Strap removable
Inside
17in Laptop 16in
0 Main Compartments 1
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
N Water Bottle Holder 2
Y Water Resistant Y
Material
Durable Cordura, waxed canvas, or XPAC sailcloth exterior

ILE Transit 25L

Front facing view of the ILE Transit 25L
Capacity25 L
Weight2 kg
Dimensions50.8×30.5×15.2 cm
Airline fit89%
Price$220

Key differences between the Tom Bihn Smart Alec and ILE Transit 25L

Both have: backpack straps, hip belt, sternum strap, built-in organizer, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 136 accept both. 4 accept only the Tom Bihn Smart Alec, and 33 accept only the ILE Transit 25L.

Only the Tom Bihn Smart Alec fits

Etihad Airways, Qatar Airways, Regional Express, Virgin Australia.

Only the ILE Transit 25L fits

Air Baltic, Air China, Air Malta, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Blue Air, Bulgaria Air, China Eastern, 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.

Tom Bihn Smart Alec vs. ILE Transit 25L: which should you pack?

The Tom Bihn Smart Alec carries 1L more than the ILE Transit 25L (26L vs. 25L), while the Tom Bihn Smart Alec is the lighter pack at 0.9kg (vs. 2kg). For carry-on flexibility, the ILE Transit 25L fits 89% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Tom Bihn Smart Alec; if you want to travel lighter, the Tom Bihn Smart Alec is the better call.