Osprey Arcane Small Day vs. Cotopaxi Tasra 16L
Two carry-on travel backpacks, compared spec for spec.
Osprey Arcane Small Day
| Capacity | 12 L |
| Weight | 0.5 kg |
| Dimensions | 39×27×17 cm |
| Airline fit | 99% |
| Price | $100 |
Feature by feature
| Osprey Arcane Small Day | Feature | Cotopaxi Tasra 16L |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 0 |
| front | Passport | front |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | N |
| N | Sternum Strap | N |
| Inside | ||
| 14in | Laptop | 13in |
| 2 | Main Compartments | 3 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | 2, side |
| N | Water Resistant | N |
| Material | |
| bluesign® APPROVED, 100% recycled 480D polyester, DWR treatment made without PFAS | 100% recycled polyester |
Cotopaxi Tasra 16L
| Capacity | 16 L |
| Weight | 0.5 kg |
| Dimensions | 43×27×14 cm |
| Airline fit | 96% |
| Price | $85 |
Key differences between the Osprey Arcane Small Day and Cotopaxi Tasra 16L
- Opening: Clamshell on the Osprey Arcane Small Day; Other on the Cotopaxi Tasra 16L.
- Laptop sleeve: 14in on the Osprey Arcane Small Day; 13in on the Cotopaxi Tasra 16L.
- Main compartments: 2 on the Osprey Arcane Small Day; 3 on the Cotopaxi Tasra 16L.
- Water bottle pockets: No on the Osprey Arcane Small Day; 2, side on the Cotopaxi Tasra 16L.
Both have: passport pocket, backpack straps, built-in organizer.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 181 accept both. 6 accept only the Osprey Arcane Small Day, and 0 accept only the Cotopaxi Tasra 16L.
Only the Osprey Arcane Small Day fits
LC Perú, Lion Air Group, Spring Airlines, VivaColombia, Volaris, Wizz Air.
Osprey Arcane Small Day vs. Cotopaxi Tasra 16L: which should you pack?
The Cotopaxi Tasra 16L carries 4L more than the Osprey Arcane Small Day (12L vs. 16L), while the Osprey Arcane Small Day is the lighter pack at 0.5kg (vs. 0.5kg). For carry-on flexibility, the Osprey Arcane Small Day fits 99% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Cotopaxi Tasra 16L; if you want to travel lighter, the Osprey Arcane Small Day is the better call.