Timbuk2 Never Check Expandable Backpack vs. United by Blue (R)evolution 25L Convertible Carryall
Two carry-on travel backpacks, compared spec for spec.
Timbuk2 Never Check Expandable Backpack
| Capacity | 25 L |
| Weight | 1.2 kg |
| Dimensions | 48×29×15 cm |
| Airline fit | 93% |
| Price | $210 |
Feature by feature
| Timbuk2 Never Check Expandable Backpack | Feature | United by Blue (R)evolution 25L Convertible Carryall |
|---|---|---|
| Storage | ||
| 2 | Compression | N |
| 28L | Expanded Capacity | None |
| 0 | Opening | 0 |
| front | Passport | front |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | hideable |
| N | Hip Belt | N |
| removable | Sternum Strap | removable |
| Inside | ||
| 15in | Laptop | 15in |
| 3 | Main Compartments | 2 |
| Y | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
United by Blue (R)evolution 25L Convertible Carryall
| Capacity | 25 L |
| Weight | 0 kg |
| Dimensions | 39×34×13 cm |
| Airline fit | 96% |
| Price | $120 |
Key differences between the Timbuk2 Never Check Expandable Backpack and United by Blue (R)evolution 25L Convertible Carryall
- Compression straps: 2 on the Timbuk2 Never Check Expandable Backpack; No on the United by Blue (R)evolution 25L Convertible Carryall.
- Backpack straps: Yes on the Timbuk2 Never Check Expandable Backpack; Hideable on the United by Blue (R)evolution 25L Convertible Carryall.
- Main compartments: 3 on the Timbuk2 Never Check Expandable Backpack; 2 on the United by Blue (R)evolution 25L Convertible Carryall.
- Built-in organizer: Yes on the Timbuk2 Never Check Expandable Backpack; No on the United by Blue (R)evolution 25L Convertible Carryall.
- Water bottle pockets: 1, side on the Timbuk2 Never Check Expandable Backpack; 2, side on the United by Blue (R)evolution 25L Convertible Carryall.
Both have: passport pocket, sternum strap, 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. 174 accept both. 1 accept only the Timbuk2 Never Check Expandable Backpack, and 7 accept only the United by Blue (R)evolution 25L Convertible Carryall.
Only the Timbuk2 Never Check Expandable Backpack fits
Air Niugini.
Only the United by Blue (R)evolution 25L Convertible Carryall fits
Air Tahiti, American Eagle, easyJet, Gulf Air, Ravn Alaska, VivaColombia, Volaris.
Timbuk2 Never Check Expandable Backpack vs. United by Blue (R)evolution 25L Convertible Carryall: which should you pack?
The Timbuk2 Never Check Expandable Backpack carries the same capacity as the United by Blue (R)evolution 25L Convertible Carryall (25L vs. 25L), and the two are closely matched on weight. For carry-on flexibility, the United by Blue (R)evolution 25L Convertible Carryall fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Timbuk2 Never Check Expandable Backpack; if you want to travel lighter, the Timbuk2 Never Check Expandable Backpack is the better call.