Osprey Nebula vs. Tropicfeel Shell

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

Osprey Nebula

Front facing view of the Osprey Nebula
Capacity34 L
Weight1 kg
Dimensions49×31×29 cm
Airline fit13%
Price$140

Feature by feature

Osprey NebulaFeatureTropicfeel Shell
Storage
4 Compression 4
None Expanded Capacity 40L
1 Opening 1
top Passport top, back
N Passthrough N
Carry
Y Backpack Y
removable Hip Belt hideable
Y Sternum Strap Y
Inside
15in Laptop 16in
3 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
MAIN: 420HD Nylon Packcloth BOTTOM: 420HD Nylon PackclothRecycled polyester

Tropicfeel Shell

Front facing view of the Tropicfeel Shell
Capacity20 L
Weight1.2 kg
Dimensions50×30×23 cm
Airline fit72%
Price$240

Key differences between the Osprey Nebula and Tropicfeel Shell

Both have: compression straps, backpack straps, sternum strap, 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. 25 accept both. 0 accept only the Osprey Nebula, and 111 accept only the Tropicfeel Shell.

Only the Tropicfeel Shell fits

Aegean Airlines, Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Asia, Air Astana, Air Canada, Air Caraibes, Air France, Air India, Air Macau, Air Mauritius, Air Nostrum, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, ANA, Atlas Global, Austrian, Avianca , Azerbaijan Airlines, Bahamasair, Bangkok Airways, Biman Bangladesh, Boliviana de Aviacion, British Airways, Brussels Airlines, Cambodia Angkor Air, Cathay Pacific, Cayman Airways, Cebu Pacific, China Airlines, CommutAir, Conviasa, Copa Airlines, Czech Airlines, Delta Airlines, Dragonair, EL AL, Ethiopian Airlines, Etihad Airways, Eurowings, EVA Air, Fiji Airways, Finnair, Flair Air, Frontier Airlines, Garuda Indonesia, Gol Linhas Aereas, Hawaiian Airlines, Hong Kong Airlines, Iberia, Indigo, Interjet, Iran Air, Iran Aseman Air, Island Air, Japan Airlines, Jet Airways, Jet2, jetBlue Airways, Jetstar Airways, Jetstar Asia, Kenya Airways, KLM, Kulula, Kuwait Air, LATAM , LOT Polish, Lufthansa, Mahan Air, Malaysia Airlines, Mango, Mesa Airlines, Middle East Airlines, Monarch Airlines, Norwegian, Oman Air, Onur Air, Peach, PenAir, Porter Airlines, Qantas Airways, Qatar Airways, Republic Airways, Royal Jordanian, SAS Scandinavian, Scoot, Sky Airlines, Skywest, Inc., South African Airways, Southwest Airlines, Spirit Airlines, SriLankan Airlines, Sun Country, Swiss Int'l Air Lines, Thai Airways, Tiger Airways, Trans States, Travel Service Airlines, Turkish Airlines, United Airlines, Uzbekistan Air, Vietnam Airlines, Virgin Atlantic, WestJet, WOW Airlines.

Osprey Nebula vs. Tropicfeel Shell: which should you pack?

The Osprey Nebula carries 14L more than the Tropicfeel Shell (34L vs. 20L), while the Osprey Nebula is the lighter pack at 1kg (vs. 1.2kg). For carry-on flexibility, the Tropicfeel Shell fits 72% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Osprey Nebula; if you want to travel lighter, the Osprey Nebula is the better call.