STM Trilogy vs. Boundary Supply Rennen Recycled Daypack
Two carry-on travel backpacks, compared spec for spec.
Feature by feature
| STM Trilogy | Feature | Boundary Supply Rennen Recycled Daypack |
|---|---|---|
| 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 | N |
| Inside | ||
| 15in | Laptop | 15in |
| 1 | Main Compartments | 1 |
| Y | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2 | Water Bottle Holder | 1 |
| Y | Water Resistant | Y |
| Material | |
| 100% polyester | RE-3™ 600/500D Eco Cordura® |
Boundary Supply Rennen Recycled Daypack
| Capacity | 22 L |
| Weight | 0.9 kg |
| Dimensions | 46×28×18 cm |
| Airline fit | 95% |
| Price | $140 |
Key differences between the STM Trilogy and Boundary Supply Rennen Recycled Daypack
- Built-in organizer: Yes on the STM Trilogy; No on the Boundary Supply Rennen Recycled Daypack.
- Water bottle pockets: 2 on the STM Trilogy; 1 on the Boundary Supply Rennen Recycled Daypack.
Both have: backpack straps, laptop sleeve, 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 1 accept only the Boundary Supply Rennen Recycled Daypack.
Only the Boundary Supply Rennen Recycled Daypack fits
Great Lakes Airlines.
STM Trilogy vs. Boundary Supply Rennen Recycled Daypack: which should you pack?
The STM Trilogy carries 2L more than the Boundary Supply Rennen Recycled Daypack (24L vs. 22L), while the STM Trilogy is the lighter pack at 0.64kg (vs. 0.9kg). For carry-on flexibility, the Boundary Supply Rennen Recycled Daypack 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 STM Trilogy is the better call.