Cabin Zero Varsity 26L vs. Boundary Supply Rennen X-Pac Daypack
Two carry-on travel backpacks, compared spec for spec.
Cabin Zero Varsity 26L
| Capacity | 26 L |
| Weight | 0.44 kg |
| Dimensions | 40×30×16 cm |
| Airline fit | 98% |
| Price | $90 |
Feature by feature
| Cabin Zero Varsity 26L | Feature | Boundary Supply Rennen X-Pac 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 | ||
| Laptop | 15in | |
| 1 | Main Compartments | 1 |
| N | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | 1 |
| Y | Water Resistant | Y |
| Material | |
| 600D Polyester | 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 Cabin Zero Varsity 26L and Boundary Supply Rennen X-Pac Daypack
- Water bottle pockets: No on the Cabin Zero Varsity 26L; 1 on the Boundary Supply Rennen X-Pac Daypack.
Both have: backpack straps, 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. 8 accept only the Cabin Zero Varsity 26L, and 1 accept only the Boundary Supply Rennen X-Pac Daypack.
Only the Cabin Zero Varsity 26L fits
Air Tahiti, Gulf Air, LC Perú, Lion Air Group, Spring Airlines, VivaColombia, Volaris, Wizz Air.
Only the Boundary Supply Rennen X-Pac Daypack fits
Great Lakes Airlines.
Cabin Zero Varsity 26L vs. Boundary Supply Rennen X-Pac Daypack: which should you pack?
The Cabin Zero Varsity 26L carries 4L more than the Boundary Supply Rennen X-Pac Daypack (26L vs. 22L), while the Cabin Zero Varsity 26L is the lighter pack at 0.44kg (vs. 0.9kg). For carry-on flexibility, the Cabin Zero Varsity 26L fits 98% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Cabin Zero Varsity 26L; if you want to travel lighter, the Cabin Zero Varsity 26L is the better call.