STM Trilogy vs. Patagonia Women's Tamangito Pack 20L
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| STM Trilogy | Feature | Patagonia Women's Tamangito Pack 20L |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 4 | Opening | 4 |
| N | Passport | N |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | N |
| N | Sternum Strap | Y |
| Inside | ||
| 15in | Laptop | 15in |
| 1 | Main Compartments | 1 |
| Y | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2 | Water Bottle Holder | 2 |
| Y | Water Resistant | Y |
| Material | |
| 100% polyester | 200-denier 100% recycled polyester, |
Patagonia Women's Tamangito Pack 20L
| Capacity | 20 L |
| Weight | 0.52 kg |
| Dimensions | 41×30×13 cm |
| Airline fit | 95% |
| Price | $79 |
Key differences between the STM Trilogy and Patagonia Women's Tamangito Pack 20L
- Sternum strap: No on the STM Trilogy; Yes on the Patagonia Women's Tamangito Pack 20L.
- Built-in organizer: Yes on the STM Trilogy; No on the Patagonia Women's Tamangito Pack 20L.
Both have: backpack straps, laptop sleeve, 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. 178 accept both. 0 accept only the STM Trilogy, and 2 accept only the Patagonia Women's Tamangito Pack 20L.
Only the Patagonia Women's Tamangito Pack 20L fits
Air Tahiti, Gulf Air.
STM Trilogy vs. Patagonia Women's Tamangito Pack 20L: which should you pack?
The STM Trilogy carries 4L more than the Patagonia Women's Tamangito Pack 20L (24L vs. 20L), while the Patagonia Women's Tamangito Pack 20L is the lighter pack at 0.52kg (vs. 0.64kg). For carry-on flexibility, the Patagonia Women's Tamangito Pack 20L fits 95% 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 Patagonia Women's Tamangito Pack 20L is the better call.