STM Trilogy vs. Lo & Sons Westholme
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| STM Trilogy | Feature | Lo & Sons Westholme |
|---|---|---|
| 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 | 15in |
| 1 | Main Compartments | 2 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2 | Water Bottle Holder | 2 |
| Y | Water Resistant | N |
| Material | |
| 100% polyester | Sheepskin Leather |
Lo & Sons Westholme
| Capacity | 24 L |
| Weight | 1.2 kg |
| Dimensions | 36×27×12 cm |
| Airline fit | 99% |
| Price | $628 |
Key differences between the STM Trilogy and Lo & Sons Westholme
- Passport pocket: No on the STM Trilogy; Yes on the Lo & Sons Westholme.
- Luggage passthrough: No on the STM Trilogy; Yes on the Lo & Sons Westholme.
- Main compartments: 1 on the STM Trilogy; 2 on the Lo & Sons Westholme.
- Water resistant: Yes on the STM Trilogy; No on the Lo & Sons Westholme.
Both have: backpack straps, laptop sleeve, built-in organizer, water bottle pockets.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 178 accept both. 0 accept only the STM Trilogy, and 9 accept only the Lo & Sons Westholme.
Only the Lo & Sons Westholme fits
Air Tahiti, Great Lakes Airlines, Gulf Air, LC Perú, Lion Air Group, Spring Airlines, VivaColombia, Volaris, Wizz Air.
STM Trilogy vs. Lo & Sons Westholme: which should you pack?
The STM Trilogy carries the same capacity as the Lo & Sons Westholme (24L vs. 24L), while the STM Trilogy is the lighter pack at 0.64kg (vs. 1.2kg). For carry-on flexibility, the Lo & Sons Westholme fits 99% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the STM Trilogy; if you want to travel lighter, the STM Trilogy is the better call.