Knack Bags Medium Expandable Knack Pack v2 vs. Moment Everything Backpack 21L Overnight
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 | Moment Everything Backpack 21L Overnight |
|---|---|---|
| Storage | ||
| N | Compression | N |
| 35L | Expanded Capacity | None |
| 1 | Opening | 0 |
| front | Passport | front |
| N | Passthrough | Y |
| Carry | ||
| hideable | Backpack | Y |
| N | Hip Belt | N |
| removable | Sternum Strap | Y |
| Inside | ||
| 16in | Laptop | 16in |
| 3 | Main Compartments | 3 |
| N | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |
| Material | |
| PU coated 420 denier, high-density nylon | 420D Nylon Fabric |
Moment Everything Backpack 21L Overnight
| Capacity | 21 L |
| Weight | 0.8 kg |
| Dimensions | 47×29×15 cm |
| Airline fit | 93% |
| Price | $150 |
Key differences between the Knack Bags Medium Expandable Knack Pack v2 and Moment Everything Backpack 21L Overnight
- Opening: Clamshell on the Knack Bags Medium Expandable Knack Pack v2; Other on the Moment Everything Backpack 21L Overnight.
- Luggage passthrough: No on the Knack Bags Medium Expandable Knack Pack v2; Yes on the Moment Everything Backpack 21L Overnight.
- Backpack straps: Hideable on the Knack Bags Medium Expandable Knack Pack v2; Yes on the Moment Everything Backpack 21L Overnight.
- Sternum strap: Removable on the Knack Bags Medium Expandable Knack Pack v2; Yes on the Moment Everything Backpack 21L Overnight.
Both have: passport pocket, laptop sleeve, 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. 174 accept both. 0 accept only the Knack Bags Medium Expandable Knack Pack v2, and 1 accept only the Moment Everything Backpack 21L Overnight.
Only the Moment Everything Backpack 21L Overnight fits
Air Niugini.
Knack Bags Medium Expandable Knack Pack v2 vs. Moment Everything Backpack 21L Overnight: which should you pack?
The Knack Bags Medium Expandable Knack Pack v2 carries 3L more than the Moment Everything Backpack 21L Overnight (24L vs. 21L), while the Moment Everything Backpack 21L Overnight is the lighter pack at 0.8kg (vs. 1.4kg). For carry-on flexibility, the Moment Everything Backpack 21L Overnight fits 93% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Knack Bags Medium Expandable Knack Pack v2; if you want to travel lighter, the Moment Everything Backpack 21L Overnight is the better call.