Mammut Nirvana 28 vs. Fjallraven Kanken Outlong
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 | Fjallraven Kanken Outlong |
|---|---|---|
| Storage | ||
| 6 | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| front | Passport | front |
| N | Passthrough | N |
| Carry | ||
| Y | Backpack | Y |
| Y | Hip Belt | N |
| Y | Sternum Strap | N |
| 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 | Vinylon F: 100% vinylal Produced without PFAS |
Fjallraven Kanken Outlong
| Capacity | 18 L |
| Weight | 0.5 kg |
| Dimensions | 40×28×14 cm |
| Airline fit | 99% |
| Price | $155 |
Key differences between the Mammut Nirvana 28 and Fjallraven Kanken Outlong
- Compression straps: 6 on the Mammut Nirvana 28; No on the Fjallraven Kanken Outlong.
- Hip belt: Yes on the Mammut Nirvana 28; No on the Fjallraven Kanken Outlong.
- Sternum strap: Yes on the Mammut Nirvana 28; No on the Fjallraven Kanken Outlong.
- Water resistant: No on the Mammut Nirvana 28; Yes on the Fjallraven Kanken Outlong.
Both have: passport pocket, backpack straps, 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. 173 accept both. 0 accept only the Mammut Nirvana 28, and 14 accept only the Fjallraven Kanken Outlong.
Only the Fjallraven Kanken Outlong fits
Air Tahiti, American Eagle, easyJet, Great Lakes Airlines, Gulf Air, LC Perú, Lion Air Group, Ravn Alaska, Regional Express, Spring Airlines, Virgin Australia, VivaColombia, Volaris, Wizz Air.
Mammut Nirvana 28 vs. Fjallraven Kanken Outlong: which should you pack?
The Mammut Nirvana 28 carries 10L more than the Fjallraven Kanken Outlong (28L vs. 18L), while the Fjallraven Kanken Outlong is the lighter pack at 0.5kg (vs. 1.1kg). For carry-on flexibility, the Fjallraven Kanken Outlong fits 99% 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 Fjallraven Kanken Outlong is the better call.