Attitude Supply ATD2 Backpack vs. Topo Designs Global Travel Bag 30L
Two carry-on travel backpacks, compared spec for spec.
Attitude Supply ATD2 Backpack
| Capacity | 18 L |
| Weight | 1.3 kg |
| Dimensions | 45×25×19 cm |
| Airline fit | 96% |
| Price | $475 |
Feature by feature
| Attitude Supply ATD2 Backpack | Feature | Topo Designs Global Travel Bag 30L |
|---|---|---|
| Storage | ||
| 4 | Compression | N |
| 31L | Expanded Capacity | 35L |
| 1 | Opening | 1 |
| front | Passport | front |
| Y | Passthrough | Y |
| Carry | ||
| removable | Backpack | hideable |
| removable | Hip Belt | removable |
| removable | Sternum Strap | removable |
| Inside | ||
| 15in | Laptop | 15in |
| 2 | Main Compartments | 3 |
| Y | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
| Challenge Sailcloth Ecopak® EPLX600 | 1000D recycled nylon, |
Topo Designs Global Travel Bag 30L
| Capacity | 30 L |
| Weight | 1.2 kg |
| Dimensions | 51×32×18 cm |
| Airline fit | 89% |
| Price | $200 |
Key differences between the Attitude Supply ATD2 Backpack and Topo Designs Global Travel Bag 30L
- Compression straps: 4 on the Attitude Supply ATD2 Backpack; No on the Topo Designs Global Travel Bag 30L.
- Expansion: 31L when expanded on the Attitude Supply ATD2 Backpack; 35L when expanded on the Topo Designs Global Travel Bag 30L.
- Backpack straps: Removable on the Attitude Supply ATD2 Backpack; Hideable on the Topo Designs Global Travel Bag 30L.
- Main compartments: 2 on the Attitude Supply ATD2 Backpack; 3 on the Topo Designs Global Travel Bag 30L.
- Built-in organizer: Yes on the Attitude Supply ATD2 Backpack; No on the Topo Designs Global Travel Bag 30L.
Both have: passport pocket, luggage passthrough, hip belt, sternum strap, laptop sleeve, 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. 169 accept both. 12 accept only the Attitude Supply ATD2 Backpack, and 0 accept only the Topo Designs Global Travel Bag 30L.
Only the Attitude Supply ATD2 Backpack fits
Air Niugini, Air Tahiti, American Eagle, Belavia, easyJet, Etihad Airways, Great Lakes Airlines, Gulf Air, Qatar Airways, Ravn Alaska, Regional Express, Virgin Australia.
Attitude Supply ATD2 Backpack vs. Topo Designs Global Travel Bag 30L: which should you pack?
The Topo Designs Global Travel Bag 30L carries 12L more than the Attitude Supply ATD2 Backpack (18L vs. 30L), while the Topo Designs Global Travel Bag 30L is the lighter pack at 1.2kg (vs. 1.3kg). For carry-on flexibility, the Attitude Supply ATD2 Backpack fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Topo Designs Global Travel Bag 30L; if you want to travel lighter, the Topo Designs Global Travel Bag 30L is the better call.