Patagonia Atom Tote Pack 20L vs. Piorama Delta
Two carry-on travel backpacks, compared spec for spec.
Patagonia Atom Tote Pack 20L
| Capacity | 20 L |
| Weight | 0.6 kg |
| Dimensions | 41×30×13 cm |
| Airline fit | 95% |
| Price | $90 |
Feature by feature
| Patagonia Atom Tote Pack 20L | Feature | Piorama Delta |
|---|---|---|
| Storage | ||
| N | Compression | 2 |
| None | Expanded Capacity | 42L |
| 0 | Opening | 1 |
| front | Passport | front |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | N |
| removable | Sternum Strap | removable |
| Inside | ||
| 13in | Laptop | 16in |
| 2 | Main Compartments | 3 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
| 7.3-oz 400-denier recycled Polyester with DWR Finish | 900D Nylon |
Key differences between the Patagonia Atom Tote Pack 20L and Piorama Delta
- Compression straps: No on the Patagonia Atom Tote Pack 20L; 2 on the Piorama Delta.
- Opening: Other on the Patagonia Atom Tote Pack 20L; Clamshell on the Piorama Delta.
- Laptop sleeve: 13in on the Patagonia Atom Tote Pack 20L; 16in on the Piorama Delta.
- Main compartments: 2 on the Patagonia Atom Tote Pack 20L; 3 on the Piorama Delta.
Both have: passport pocket, 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. 179 accept both. 1 accept only the Patagonia Atom Tote Pack 20L, and 0 accept only the Piorama Delta.
Only the Patagonia Atom Tote Pack 20L fits
Air Niugini.
Patagonia Atom Tote Pack 20L vs. Piorama Delta: which should you pack?
The Patagonia Atom Tote Pack 20L carries 4L more than the Piorama Delta (20L vs. 16L), while the Patagonia Atom Tote Pack 20L is the lighter pack at 0.6kg (vs. 1.2kg). For carry-on flexibility, the Patagonia Atom Tote Pack 20L fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Patagonia Atom Tote Pack 20L; if you want to travel lighter, the Patagonia Atom Tote Pack 20L is the better call.