Moment Everything Backpack 21L Overnight vs. Moment Everything Backpack 17L Overnight
Two carry-on travel backpacks, compared spec for spec.
Moment Everything Backpack 21L Overnight
| Capacity | 21 L |
| Weight | 0.8 kg |
| Dimensions | 47×29×15 cm |
| Airline fit | 93% |
| Price | $150 |
Feature by feature
| Moment Everything Backpack 21L Overnight | Feature | Moment Everything Backpack 17L Overnight |
|---|---|---|
| Storage | ||
| N | Compression | N |
| None | Expanded Capacity | None |
| 0 | Opening | 0 |
| front | Passport | front |
| Y | Passthrough | Y |
| Carry | ||
| Y | Backpack | Y |
| N | Hip Belt | N |
| Y | Sternum Strap | N |
| Inside | ||
| 16in | Laptop | 14in |
| 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 | |
| 420D Nylon Fabric | 420D Nylon Fabric |
Moment Everything Backpack 17L Overnight
| Capacity | 17 L |
| Weight | 0.7 kg |
| Dimensions | 42×26×15 cm |
| Airline fit | 96% |
| Price | $150 |
Key differences between the Moment Everything Backpack 21L Overnight and Moment Everything Backpack 17L Overnight
- Sternum strap: Yes on the Moment Everything Backpack 21L Overnight; No on the Moment Everything Backpack 17L Overnight.
- Laptop sleeve: 16in on the Moment Everything Backpack 21L Overnight; 14in on the Moment Everything Backpack 17L Overnight.
Both have: passport pocket, luggage passthrough, 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. 175 accept both. 0 accept only the Moment Everything Backpack 21L Overnight, and 6 accept only the Moment Everything Backpack 17L Overnight.
Only the Moment Everything Backpack 17L Overnight fits
Air Tahiti, American Eagle, easyJet, Great Lakes Airlines, Gulf Air, Ravn Alaska.
Moment Everything Backpack 21L Overnight vs. Moment Everything Backpack 17L Overnight: which should you pack?
The Moment Everything Backpack 21L Overnight carries 4L more than the Moment Everything Backpack 17L Overnight (21L vs. 17L), while the Moment Everything Backpack 17L Overnight is the lighter pack at 0.7kg (vs. 0.8kg). For carry-on flexibility, the Moment Everything Backpack 17L Overnight fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Moment Everything Backpack 21L Overnight; if you want to travel lighter, the Moment Everything Backpack 17L Overnight is the better call.