Osprey Proxima 30 vs. Bellroy Transit Backpack

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

Osprey Proxima 30

Capacity30 L
Weight0.9 kg
Dimensions48×33×27 cm
Airline fit14%
Price$100

Feature by feature

Osprey Proxima 30FeatureBellroy Transit Backpack
Storage
4 Compression N
None Expanded Capacity None
0 Opening 1
front Passport top
N Passthrough N
Carry
Y Backpack Y
N Hip Belt N
Y Sternum Strap Y
Inside
16in Laptop 16in
1 Main Compartments 4
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 2, side
Y Water Resistant Y
Material
bluesign® APPROVED 300D X 450D recycled polyester, PFC/PFAS-free DWRBaida Nylon

Bellroy Transit Backpack

Front facing view of the Bellroy Transit Backpack
Capacity28 L
Weight1.1 kg
Dimensions53×36×19 cm
Airline fit81%
Price$250

Key differences between the Osprey Proxima 30 and Bellroy Transit Backpack

Both have: backpack straps, sternum strap, laptop sleeve, built-in organizer, 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. 27 accept both. 0 accept only the Osprey Proxima 30, and 126 accept only the Bellroy Transit Backpack.

Only the Bellroy Transit Backpack fits

Aegean Airlines, Aer Lingus, Aeroflot, Aeromexico, Air Asia, Air Astana, Air Baltic, Air Canada, Air Caraibes, Air China, Air Macau, Air Malta, Air Nostrum, Air Serbia, Air Seychelles, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, ANA, Asiana Airlines, ATA Airlines, Atlas Global, Austrian, Avianca , Azerbaijan Airlines, Bahamasair, Bangkok Airways, Biman Bangladesh, Blue Air, British Airways, Brussels Airlines, Bulgaria Air, Cambodia Angkor Air, Cathay Pacific, Cebu Pacific, China Airlines, China Eastern, CommutAir, Conviasa, Copa Airlines, Czech Airlines, Delta Airlines, Dragonair, EL AL, Emirates Airlines, Enter Air, Ethiopian Airlines, Eurowings, EVA Air, Fiji Airways, Finnair, Flair Air, Frontier Airlines, Garuda Indonesia, Gol Linhas Aereas, Hawaiian Airlines, Hong Kong Airlines, Iberia, Icelandair, Interjet, Iran Air, Iran Aseman Air, Japan Airlines, Jet2, jetBlue Airways, Jetstar Airways, Jetstar Asia, Juneyao Airlines, Kulula, Kuwait Air, Liat Airlines, LOT Polish, Lufthansa, Luxair, Mahan Air, Malaysia Airlines, Mango, Meridiana Fly, Mesa Airlines, Middle East Airlines, Monarch Airlines, Nordwind Airlines, Norwegian, Onur Air, Pakistan International, Peach, PenAir, Porter Airlines, Qantas Airways, Republic Airways, Royal Brunei Airlines, Ryanair, S7, SAS Scandinavian, Scoot, Shandong Airlines, Shenzhen Airlines, Skywest, Inc., South African Airways, Southwest Airlines, Spirit Airlines, SriLankan Airlines, Sun Express, Swiss Int'l Air Lines, TAP Air Portugal, TAROM, Thai Airways, Tianjin Airlines (A320 & E190), Tiger Airways, Trans States, Travel Service Airlines, TUI, Turkish Airlines, Ukraine International, United Airlines, Uzbekistan Air, Vietnam Airlines, VIM Airlines (Closed), Virgin Atlantic, Volotea, WestJet, WOW Airlines, Xiamen.

Osprey Proxima 30 vs. Bellroy Transit Backpack: which should you pack?

The Osprey Proxima 30 carries 2L more than the Bellroy Transit Backpack (30L vs. 28L), while the Osprey Proxima 30 is the lighter pack at 0.9kg (vs. 1.1kg). For carry-on flexibility, the Bellroy Transit Backpack fits 81% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Osprey Proxima 30; if you want to travel lighter, the Osprey Proxima 30 is the better call.