The North Face Surge vs. Tom Bihn Synapse 25

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

The North Face Surge

Front facing view of the The North Face Surge
Capacity31 L
Weight1.3 kg
Dimensions51×31×18 cm
Airline fit89%
Price$140

Feature by feature

The North Face SurgeFeatureTom Bihn Synapse 25
Storage
2 Compression N
None Expanded Capacity None
0 Opening 0
front Passport front
N Passthrough N
Carry
Y Backpack Y
removable Hip Belt removable
Y Sternum Strap removable
Inside
15in Laptop 15in
3 Main Compartments 6
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 1, front
Y Water Resistant Y
Material
210D recycled nylon ripstop with non-PFC durable water-repellent (non-PFC DWR) finish200 denier Halcyon/nylon ripstop fabric lining 400 denier nylon lower back

Tom Bihn Synapse 25

Front facing view of the Tom Bihn Synapse 25
Capacity25 L
Weight0.8 kg
Dimensions51×34×23 cm
Airline fit71%
Price$250

Key differences between the The North Face Surge and Tom Bihn Synapse 25

Both have: passport pocket, backpack straps, hip belt, laptop sleeve, 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. 134 accept both. 35 accept only the The North Face Surge, and 0 accept only the Tom Bihn Synapse 25.

Only the The North Face Surge 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, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Pakistan International, 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.

The North Face Surge vs. Tom Bihn Synapse 25: which should you pack?

The The North Face Surge carries 6L more than the Tom Bihn Synapse 25 (31L vs. 25L), while the Tom Bihn Synapse 25 is the lighter pack at 0.8kg (vs. 1.3kg). For carry-on flexibility, the The North Face Surge fits 89% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the The North Face Surge; if you want to travel lighter, the Tom Bihn Synapse 25 is the better call.