Ortlieb Atrack BP vs. Ortlieb Atrack ST
Two carry-on travel backpacks, compared spec for spec.
Ortlieb Atrack BP
| Capacity | 25 L |
| Weight | 1.3 kg |
| Dimensions | 56×26×25 cm |
| Airline fit | 27% |
| Price | $250 |
Feature by feature
| Ortlieb Atrack BP | Feature | Ortlieb Atrack ST |
|---|---|---|
| Storage | ||
| Y | Compression | Y |
| None | Expanded Capacity | None |
| 0 | Opening | 4 |
| N | Passport | N |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| Y | Hip Belt | Y |
| Y | Sternum Strap | Y |
| Inside | ||
| N | Laptop | N |
| 1 | Main Compartments | 1 |
| N | Organizer | |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2 | Water Bottle Holder | 2 |
| Y | Water Resistant | Y |
| Material | |
| PS21R | PS33 |
Ortlieb Atrack ST
| Capacity | 25 L |
| Weight | 1.41 kg |
| Dimensions | 56×26×25 cm |
| Airline fit | 27% |
| Price | $250 |
Key differences between the Ortlieb Atrack BP and Ortlieb Atrack ST
- Opening: Other on the Ortlieb Atrack BP; Top zip on the Ortlieb Atrack ST.
Both have: compression straps, backpack straps, hip belt, sternum strap, 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. 51 accept both. Every airline that takes one takes the other.
Ortlieb Atrack BP vs. Ortlieb Atrack ST: which should you pack?
The Ortlieb Atrack BP carries the same capacity as the Ortlieb Atrack ST (25L vs. 25L), while the Ortlieb Atrack BP is the lighter pack at 1.3kg (vs. 1.41kg). For carry-on flexibility, the Ortlieb Atrack BP fits 27% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Ortlieb Atrack BP; if you want to travel lighter, the Ortlieb Atrack BP is the better call.