Amazon Basics Ultralight Portable Packable Day Pack vs. Boundary Supply Rennen X-Pac Daypack
Two carry-on travel backpacks, compared spec for spec.
Amazon Basics Ultralight Portable Packable Day Pack
| Capacity | 27 L |
| Weight | 158.8 kg |
| Dimensions | 44.5×29.2×19.1 cm |
| Airline fit | 95% |
| Price | $20 |
Feature by feature
| Amazon Basics Ultralight Portable Packable Day Pack | Feature | Boundary Supply Rennen X-Pac Daypack |
|---|---|---|
| Storage | ||
| Y | 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 | ||
| N | Laptop | 15in |
| 1 | Main Compartments | 1 |
| N | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1 | Water Bottle Holder | 1 |
| Y | Water Resistant | Y |
| Material | |
| Nylon | Custom VX21 X-Pac material |
Boundary Supply Rennen X-Pac Daypack
| Capacity | 22 L |
| Weight | 0.9 kg |
| Dimensions | 46×28×18 cm |
| Airline fit | 95% |
| Price | $170 |
Key differences between the Amazon Basics Ultralight Portable Packable Day Pack and Boundary Supply Rennen X-Pac Daypack
- Compression straps: Yes on the Amazon Basics Ultralight Portable Packable Day Pack; No on the Boundary Supply Rennen X-Pac Daypack.
- Laptop sleeve: No on the Amazon Basics Ultralight Portable Packable Day Pack; 15in on the Boundary Supply Rennen X-Pac Daypack.
Both have: backpack straps, 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. 2 accept only the Amazon Basics Ultralight Portable Packable Day Pack, and 1 accept only the Boundary Supply Rennen X-Pac Daypack.
Only the Amazon Basics Ultralight Portable Packable Day Pack fits
Air Tahiti, Gulf Air.
Only the Boundary Supply Rennen X-Pac Daypack fits
Great Lakes Airlines.
Amazon Basics Ultralight Portable Packable Day Pack vs. Boundary Supply Rennen X-Pac Daypack: which should you pack?
The Amazon Basics Ultralight Portable Packable Day Pack carries 5L more than the Boundary Supply Rennen X-Pac Daypack (27L vs. 22L), while the Boundary Supply Rennen X-Pac Daypack is the lighter pack at 0.9kg (vs. 158.8kg). For carry-on flexibility, the Amazon Basics Ultralight Portable Packable Day Pack fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Amazon Basics Ultralight Portable Packable Day Pack; if you want to travel lighter, the Boundary Supply Rennen X-Pac Daypack is the better call.