Knack Bags Medium Expandable Knack Pack v2 vs. United by Blue (R)evolution 25L Convertible Carryall
Two carry-on travel backpacks, compared spec for spec.
Knack Bags Medium Expandable Knack Pack v2
| Capacity | 24 L |
| Weight | 1.4 kg |
| Dimensions | 48×31×11 cm |
| Airline fit | 92% |
| Price | $265 |
Feature by feature
| Knack Bags Medium Expandable Knack Pack v2 | Feature | United by Blue (R)evolution 25L Convertible Carryall |
|---|---|---|
| Storage | ||
| N | Compression | N |
| 35L | Expanded Capacity | None |
| 1 | Opening | 0 |
| front | Passport | front |
| N | Passthrough | N |
| Carry | ||
| hideable | Backpack | hideable |
| N | Hip Belt | N |
| removable | Sternum Strap | removable |
| Inside | ||
| 16in | Laptop | 15in |
| 3 | Main Compartments | 2 |
| N | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 2, side |
| Y | Water Resistant | Y |
| Material | |
| PU coated 420 denier, high-density nylon | |
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 Knack Bags Medium Expandable Knack Pack v2 and United by Blue (R)evolution 25L Convertible Carryall
- Opening: Clamshell on the Knack Bags Medium Expandable Knack Pack v2; Other on the United by Blue (R)evolution 25L Convertible Carryall.
- Laptop sleeve: 16in on the Knack Bags Medium Expandable Knack Pack v2; 15in on the United by Blue (R)evolution 25L Convertible Carryall.
- Main compartments: 3 on the Knack Bags Medium Expandable Knack Pack v2; 2 on the United by Blue (R)evolution 25L Convertible Carryall.
- Water bottle pockets: 1, side on the Knack Bags Medium Expandable Knack Pack v2; 2, side on the United by Blue (R)evolution 25L Convertible Carryall.
Both have: passport pocket, backpack straps, sternum strap, 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. 0 accept only the Knack Bags Medium Expandable Knack Pack v2, and 7 accept only the United by Blue (R)evolution 25L Convertible Carryall.
Only the United by Blue (R)evolution 25L Convertible Carryall fits
Air Tahiti, American Eagle, easyJet, Gulf Air, Ravn Alaska, VivaColombia, Volaris.
Knack Bags Medium Expandable Knack Pack v2 vs. United by Blue (R)evolution 25L Convertible Carryall: which should you pack?
The United by Blue (R)evolution 25L Convertible Carryall carries 1L more than the Knack Bags Medium Expandable Knack Pack v2 (24L 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 United by Blue (R)evolution 25L Convertible Carryall; if you want to travel lighter, the Knack Bags Medium Expandable Knack Pack v2 is the better call.