Dometic TRT 140 AIR vs Harva Outdoors Viken 2.1 Lagom
The Dometic TRT 140 AIR and the Harva Outdoors Viken 2.1 Lagom are both softshell tents in the same part of the market, which makes them a genuine head-to-head rather than a comparison across categories. Dometic and Harva Outdoors take noticeably different approaches to the same problem.
By the numbers, the Dometic TRT 140 AIR brings 47 kg, 3.16 m² of floor, 115 cm of headroom and sleeps 2. The Harva Outdoors Viken 2.1 Lagom counters with 66 kg, 3.84 m² of floor, 135 cm of headroom and sleeps 3.
The TRT 140 AIR is 19 kg lighter at 47 kg against 66 kg, which on a factory roof rated for 68 to 75 kg is often the difference between a legal fit and a rack upgrade. Inside, the Viken 2.1 Lagom gives 3.84 m² of sleeping floor against 3.16 m², about 22 percent more, and it sleeps 3 to the TRT 140 AIR's 2. Headroom separates them further: 135 cm in the Viken 2.1 Lagom against 115 cm, which is the difference between sitting up to dress and doing it lying down. Their list prices are within a few percent of each other, so price is unlikely to decide this one.
They open differently: the TRT 140 AIR is an inflatable and the Viken 2.1 Lagom a fold-out. That is not cosmetic — it decides whether headroom is even across the tent or tapers towards one end, and how much of the roof the tent occupies when closed. Canvas differs too: 300D ripstop polyester against 420D ripstop polyester oxford tent and roof, UV- and mould-resistant; water columns 6500 mm (tent) / 3500 mm (roof).
Dometic
TRT 140 AIR
The only inflatable tent in this database. A single-point AIR frame replaces poles entirely, which is how it reaches 47 kg and why it packs to 82 cm wide — narrow enough for hatchback crossbars that most rooftop tents overhang.
- 47 kg, and no poles to bend or snap
- 82 cm closed width fits small car racks
- No poles to break or bend
- 3.2 cm mattress is thin
Harva Outdoors
Viken 2.1 Lagom
The Viken 2.1 Lagom is the middle of Harva's three Viken softshell sizes, widening the platform to 160 × 240 cm — more room for a couple with a child, at 66 kg and SEK 23,490. It packs to 165 × 125 × 35 cm and, like the rest of the range, folds out to about a 315 cm footprint on a 300 kg honeycomb base with a 7 cm mattress and a 135 cm peak.
- 160 × 240 cm platform — room for a couple plus a child
- Middle weight and price of the three Viken sizes
- Bedding can stay inside when the softshell is folded down
- 66 kg is a two-person lift onto the roof
Which one to pick
Take the TRT 140 AIR if your roof load limit is the binding constraint. Take the Viken 2.1 Lagom if you need the sleeping room more than you need the lighter tent. Beyond that the feature rows below — heater port, skylight, annex, cargo rails — are where the remaining difference lies.
Every specification, side by side
| Specification | ||
|---|---|---|
| Overview | ||
| Type | Softshell | Softshell |
| Opening style | Inflatable | Fold-out |
| Sleeps | 2— worst of the tents compared | 3— best of the tents compared |
| Season rating | — | — |
| List price | $2,499.99— worst of the tents compared | $2,480— best of the tents compared |
| Weight and size | ||
| Weight | 104 lb— best of the tents compared | 146 lb— worst of the tents compared |
| Packed length | 4 ft 11 in— best of the tents compared | 5 ft 5 in— worst of the tents compared |
| Packed width | 2 ft 8 in— best of the tents compared | 4 ft 1 in— worst of the tents compared |
| Packed height | 12.2 in— best of the tents compared | 13.8 in— worst of the tents compared |
| Living space | ||
| Sleeping length | 7 ft 2 in— worst of the tents compared | 7 ft 10 in— best of the tents compared |
| Sleeping width | 4 ft 9 in— worst of the tents compared | 5 ft 3 in— best of the tents compared |
| Floor area | 34 sq ft— worst of the tents compared | 41.3 sq ft— best of the tents compared |
| Interior height | 3 ft 9 in— worst of the tents compared | 4 ft 5 in— best of the tents compared |
| Mattress thickness | 1.3 in— worst of the tents compared | 2.8 in— best of the tents compared |
| Setup and build | ||
| Setup timeManufacturer's claim where published; otherwise estimated from tent type. Expect longer in practice. | 2 min | ~5 minest. |
| Shell material | — | 2.5 cm aluminium honeycomb sandwich base (rated to 300 kg) with aluminium and stainless-steel hardware |
| Fabric | 300D ripstop polyester | 420D ripstop polyester oxford tent and roof, UV- and mould-resistant; water columns 6500 mm (tent) / 3500 mm (roof) |
| Warranty | — | 2years |
| Features | ||
| Integrated LED lighting | No | — |
| Heater / HVAC port | — | — |
| Roof skylight | — | — |
| Annex available | — | Yes |
| Solar ready | — | — |
| Carries cargo on top | — | — |
| Sources | ||
| Last verified | Dometic product page | Harva Outdoors product page |
Related comparisons
- TRT 140 AIRvsElements Gen II 140
- TRT 140 AIRvsVagabond 2.0
- TRT 140 AIRvsRoofTrekk Expedition
- Viken 2.1 LagomvsBIG WILLOW 4.0 (160)
Or read the full spec sheets for the Dometic TRT 140 AIR and the Harva Outdoors Viken 2.1 Lagom.