Mammut Nirvana 28 vs. Gregory Nano 24L
Two carry-on travel backpacks, compared spec for spec.
Mammut Nirvana 28
| Capacity | 28 L |
| Weight | 1.1 kg |
| Dimensions | 50×30×19 cm |
| Airline fit | 92% |
| Price | $220 |
Feature by feature
| Mammut Nirvana 28 | Feature | Gregory Nano 24L |
|---|---|---|
| Storage | ||
| 6 | Compression | 2 |
| None | Expanded Capacity | None |
| 1 | Opening | 0 |
| front | Passport | front |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| Y | Hip Belt | removable |
| Y | Sternum Strap | Y |
| Inside | ||
| N | Laptop | N |
| 3 | Main Compartments | 3 |
| N | Organizer | N |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| 2, side | Water Bottle Holder | 2, side |
| N | Water Resistant | Y |
| Material | |
| 90% Polyamide, 10% Polyester | 210D High Density 40% Recycled Nylon / 450D 100% recycled Polyester with C0 DWR |
Gregory Nano 24L
| Capacity | 24 L |
| Weight | 0.6 kg |
| Dimensions | 53×28×23 cm |
| Airline fit | 70% |
| Price | $100 |
Key differences between the Mammut Nirvana 28 and Gregory Nano 24L
- Compression straps: 6 on the Mammut Nirvana 28; 2 on the Gregory Nano 24L.
- Opening: Clamshell on the Mammut Nirvana 28; Other on the Gregory Nano 24L.
- Hip belt: Yes on the Mammut Nirvana 28; Removable on the Gregory Nano 24L.
- Water resistant: No on the Mammut Nirvana 28; Yes on the Gregory Nano 24L.
Both have: passport pocket, backpack straps, sternum strap, water bottle pockets.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 132 accept both. 41 accept only the Mammut Nirvana 28, and 1 accept only the Gregory Nano 24L.
Only the Mammut Nirvana 28 fits
Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, Emirates Airlines, Enter Air, Etihad Airways, flybe, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Oman Air, Pakistan International, Qatar Airways, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Volotea, Xiamen.
Only the Gregory Nano 24L fits
Great Lakes Airlines.
Mammut Nirvana 28 vs. Gregory Nano 24L: which should you pack?
The Mammut Nirvana 28 carries 4L more than the Gregory Nano 24L (28L vs. 24L), while the Gregory Nano 24L is the lighter pack at 0.6kg (vs. 1.1kg). For carry-on flexibility, the Mammut Nirvana 28 fits 92% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Mammut Nirvana 28; if you want to travel lighter, the Gregory Nano 24L is the better call.