Tropicfeel Shell vs. Attitude Supply ATD1 Backpack
Two carry-on travel backpacks, compared spec for spec.
Tropicfeel Shell
| Capacity | 20 L |
| Weight | 1.2 kg |
| Dimensions | 50×30×23 cm |
| Airline fit | 72% |
| Price | $240 |
Feature by feature
| Tropicfeel Shell | Feature | Attitude Supply ATD1 Backpack |
|---|---|---|
| Storage | ||
| 4 | Compression | 4 |
| 40L | Expanded Capacity | 55L |
| 1 | Opening | 1 |
| top, back | Passport | front |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| hideable | Hip Belt | removable |
| Y | Sternum Strap | removable |
| Inside | ||
| 16in | Laptop | 16in |
| 4 | Main Compartments | 2 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
| Recycled polyester | Challenge Sailcloth Ecopak® EPLX600 |
Attitude Supply ATD1 Backpack
| Capacity | 23 L |
| Weight | 1.7 kg |
| Dimensions | 50×30×26 cm |
| Airline fit | 17% |
| Price | $523 |
Key differences between the Tropicfeel Shell and Attitude Supply ATD1 Backpack
- Expansion: 40L when expanded on the Tropicfeel Shell; 55L when expanded on the Attitude Supply ATD1 Backpack.
- Passport pocket: Top, back on the Tropicfeel Shell; Front on the Attitude Supply ATD1 Backpack.
- Hip belt: Hideable on the Tropicfeel Shell; Removable on the Attitude Supply ATD1 Backpack.
- Sternum strap: Yes on the Tropicfeel Shell; Removable on the Attitude Supply ATD1 Backpack.
- Main compartments: 4 on the Tropicfeel Shell; 2 on the Attitude Supply ATD1 Backpack.
Both have: compression straps, backpack straps, 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. 32 accept both. 104 accept only the Tropicfeel Shell, and 0 accept only the Attitude Supply ATD1 Backpack.
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, Czech Airlines, Delta Airlines, Dragonair, EL AL, Ethiopian Airlines, Etihad Airways, Eurowings, EVA Air, Fiji Airways, Finnair, Flair Air, Garuda Indonesia, Gol Linhas Aereas, Hawaiian Airlines, Hong Kong Airlines, Iberia, Indigo, Interjet, Iran Air, Iran Aseman 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, Porter Airlines, Qantas Airways, Qatar Airways, Republic Airways, Royal Jordanian, SAS Scandinavian, Scoot, Sky Airlines, Skywest, Inc., South African Airways, SriLankan Airlines, 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.
Tropicfeel Shell vs. Attitude Supply ATD1 Backpack: which should you pack?
The Attitude Supply ATD1 Backpack carries 3L more than the Tropicfeel Shell (20L vs. 23L), while the Tropicfeel Shell is the lighter pack at 1.2kg (vs. 1.7kg). 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 Attitude Supply ATD1 Backpack; if you want to travel lighter, the Tropicfeel Shell is the better call.