Attitude Supply ATD2 Backpack vs. Graphene-x LIMITLESS Backpack
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 | Graphene-x LIMITLESS Backpack |
|---|---|---|
| Storage | ||
| 4 | Compression | 2 |
| 31L | Expanded Capacity | None |
| 1 | Opening | 1 |
| front | Passport | front |
| Y | Passthrough | Y |
| Carry | ||
| removable | Backpack | Y |
| removable | Hip Belt | removable |
| removable | Sternum Strap | Y |
| Inside | ||
| 15in | Laptop | 16in |
| 2 | Main Compartments | 9 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
| Challenge Sailcloth Ecopak® EPLX600 | 100% Graphene integrated 900D polyester matrix |
Graphene-x LIMITLESS Backpack
| Capacity | 25 L |
| Weight | 1.7 kg |
| Dimensions | 51×33×17 cm |
| Airline fit | 89% |
| Price | $300 |
Key differences between the Attitude Supply ATD2 Backpack and Graphene-x LIMITLESS Backpack
- Compression straps: 4 on the Attitude Supply ATD2 Backpack; 2 on the Graphene-x LIMITLESS Backpack.
- Backpack straps: Removable on the Attitude Supply ATD2 Backpack; Yes on the Graphene-x LIMITLESS Backpack.
- Sternum strap: Removable on the Attitude Supply ATD2 Backpack; Yes on the Graphene-x LIMITLESS Backpack.
- Laptop sleeve: 15in on the Attitude Supply ATD2 Backpack; 16in on the Graphene-x LIMITLESS Backpack.
- Main compartments: 2 on the Attitude Supply ATD2 Backpack; 9 on the Graphene-x LIMITLESS Backpack.
Both have: passport pocket, luggage passthrough, hip belt, 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. 169 accept both. 12 accept only the Attitude Supply ATD2 Backpack, and 0 accept only the Graphene-x LIMITLESS Backpack.
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. Graphene-x LIMITLESS Backpack: which should you pack?
The Graphene-x LIMITLESS Backpack carries 7L more than the Attitude Supply ATD2 Backpack (18L vs. 25L), while the Attitude Supply ATD2 Backpack is the lighter pack at 1.3kg (vs. 1.7kg). 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 Graphene-x LIMITLESS Backpack; if you want to travel lighter, the Attitude Supply ATD2 Backpack is the better call.