OPPOSETHIS Invisible Rolltop vs. Ortlieb Messenger Bag
Two carry-on travel backpacks, compared spec for spec.
OPPOSETHIS Invisible Rolltop
| Capacity | 21 L |
| Weight | 0.9 kg |
| Dimensions | 45×39×15 cm |
| Airline fit | 59% |
| Price | $185 |
Feature by feature
| OPPOSETHIS Invisible Rolltop | Feature | Ortlieb Messenger Bag |
|---|---|---|
| Storage | ||
| N | Compression | N |
| 26L | Expanded Capacity | None |
| 2 | Opening | 2 |
| N | Passport | N |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | removable |
| removable | Sternum Strap | removable |
| Inside | ||
| 17in | Laptop | N |
| 1 | Main Compartments | 1 |
| N | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | N |
| Y | Water Resistant | Y |
| Material | |
| 800x600D lightweight waterproof nylon-polyester blend | PD620, PS620C |
Ortlieb Messenger Bag
| Capacity | 39 L |
| Weight | 1.3 kg |
| Dimensions | 50×39×15 cm |
| Airline fit | 59% |
| Price | $140 |
Key differences between the OPPOSETHIS Invisible Rolltop and Ortlieb Messenger Bag
- Hip belt: No on the OPPOSETHIS Invisible Rolltop; Removable on the Ortlieb Messenger Bag.
- Laptop sleeve: 17in on the OPPOSETHIS Invisible Rolltop; No on the Ortlieb Messenger Bag.
Both have: backpack straps, sternum strap, water resistant.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 111 accept both. 1 accept only the OPPOSETHIS Invisible Rolltop, and 0 accept only the Ortlieb Messenger Bag.
Only the OPPOSETHIS Invisible Rolltop fits
Gulf Air.
OPPOSETHIS Invisible Rolltop vs. Ortlieb Messenger Bag: which should you pack?
The Ortlieb Messenger Bag carries 18L more than the OPPOSETHIS Invisible Rolltop (21L vs. 39L), while the OPPOSETHIS Invisible Rolltop is the lighter pack at 0.9kg (vs. 1.3kg). For carry-on flexibility, the OPPOSETHIS Invisible Rolltop fits 59% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Ortlieb Messenger Bag; if you want to travel lighter, the OPPOSETHIS Invisible Rolltop is the better call.