STM Trilogy vs. Pacsafe Metrosafe LS450 Anti-Theft 25L Backpack
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| STM Trilogy | Feature | Pacsafe Metrosafe LS450 Anti-Theft 25L Backpack |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 4 | Opening | 4 |
| N | Passport | Y |
| N | Passthrough | Y |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | N |
| N | Sternum Strap | N |
| Inside | ||
| 15in | Laptop | 16in |
| 1 | Main Compartments | 2 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2 | Water Bottle Holder | 2 |
| Y | Water Resistant | Y |
| Material | |
| 100% polyester | 210D Nylon full dull hitra, 75D Polyester herringbone dobby |
Pacsafe Metrosafe LS450 Anti-Theft 25L Backpack
| Capacity | 25 L |
| Weight | 0.84 kg |
| Dimensions | 48×30×17 cm |
| Airline fit | 93% |
| Price | $140 |
Key differences between the STM Trilogy and Pacsafe Metrosafe LS450 Anti-Theft 25L Backpack
- Passport pocket: No on the STM Trilogy; Yes on the Pacsafe Metrosafe LS450 Anti-Theft 25L Backpack.
- Luggage passthrough: No on the STM Trilogy; Yes on the Pacsafe Metrosafe LS450 Anti-Theft 25L Backpack.
- Laptop sleeve: 15in on the STM Trilogy; 16in on the Pacsafe Metrosafe LS450 Anti-Theft 25L Backpack.
- Main compartments: 1 on the STM Trilogy; 2 on the Pacsafe Metrosafe LS450 Anti-Theft 25L Backpack.
Both have: backpack straps, 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. 175 accept both. 3 accept only the STM Trilogy, and 0 accept only the Pacsafe Metrosafe LS450 Anti-Theft 25L Backpack.
Only the STM Trilogy fits
American Eagle, easyJet, Ravn Alaska.
STM Trilogy vs. Pacsafe Metrosafe LS450 Anti-Theft 25L Backpack: which should you pack?
The Pacsafe Metrosafe LS450 Anti-Theft 25L Backpack carries 1L more than the STM Trilogy (24L vs. 25L), while the STM Trilogy is the lighter pack at 0.64kg (vs. 0.84kg). For carry-on flexibility, the STM Trilogy fits 94% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Pacsafe Metrosafe LS450 Anti-Theft 25L Backpack; if you want to travel lighter, the STM Trilogy is the better call.