The Nemo Obi 1P single person, double-walled tent is spacious, simple, and quite lightweight, weighing just under 3 pounds. With a built-in vestibule, it is suitable for 3+ season camping and backpacking in good weather and bad, with ample external tie-downs to improve its stability in high winds and foul weather. But the thing that sets the Obi 1P from other double-walled tents in its class is the design. There’s nothing accidental about the way the Obi 1p functions and its adaptability in different conditions. I think Nemo has done a brilliant job here, and I love that green! Read on.
The Obi 1P is a double walled tent with a separate inner mesh tent and exterior rain fly, including one multi-segmented DAC Featherlite aluminum pole and 6 tent stakes. The inner tent walls are made using no-seeum mesh and 20d PU nylon, with a seam-taped 30d PU nylon floor. The rain fly/vestibule is also made with 20d PU nylon.
The total weight of the Obi 1P is 2 pounds 15.8 ounces, broken down as follows:
- Tent Sack: 2.9 ounces
- Stack Sack: 1.1 ounces
- Cord: 0.5 ounces
- Pole Sack: 0.8 ounces
- Inner Tent: 16.8 ounces
- Rain Fly: 11.9 ounces
- Tent Pegs: 2.5 ounces
- Tent Poles: 11.3 ounces
In addition to the standard configuration reviewed below, the Obi 1P can be set up without the rain fly in dry conditions or without the inner tent in an ultralight configuration which includes the rain fly and a special footprint, sold separately. This latter tarp-like configuration is offered by several other manufacturers and it’s a nice trend to see in mainstream commercial tents because it extends the utility of an existing tent, without requiring the purchase of a separate ultralight tarp.
Pitching the Tent
The Obi 1p is built around a hybrid center ridgepole design, with Y shaped forks at the ends to prevent the inner tent from collapsing onto the occupant. While the ends of the Y shaped forks snap into Jakes feet connectors sewn to the corners of the inner tent, it is still necessary to stake the corners to pull the floor of the inner as wide as possible, and helps firm up the overall pitch.
Once the corners are snapped in place, the inner tent is easily hung from the center poles using hooks sewn to the outside of the inner tent. In dry weather, one could easily sleep in the inner tent to keep the bugs away, without using the exterior rain fly at all.
To add the rain fly, simply drape it over the ridge pole and snap in into the Jakes feet connectors at the corners of the tent. Next, pull out the front vestibule and stake it down, and do the same with the back vent, which pulls away from the inner tent by about a foot to improve ventilation. That’s all there is too it – this tent is a fast pitch and requires very little tweaking once it’s standing.
The Inner Tent on the Obi 1p feels quite roomy inside, with steeply angled inner walls and large mesh panels contributing to the spaciousness. There is one side door facing the vestibule which is easy to get in and out of and provides convenient access to the vestibule zippers from within the tent. The floor seams of the inner are taped to keep out moisture and high nylon walls help keep out cross breezes or rain that can blow under the edges of the vestibule and the rain fly vents.
Sizewise, the interior or the tent is high enough that you can sit fully up, and while there are ample overhead gear loops for hanging items from the ceiling, you’ll need a triangular shaped gear loft if you want to use one. Width-wise, there is ample space to lay out a 20″ sleeping pad and still have extra room on the sides, although the length of the inner can still feel a bit cramped if you’re excessively tall or want to store some gear behind your head at night.
Rain Fly and Vestibule
The Obi 1p has a spacious vestibule with ample space to stow a full backpack, even with one of the door panels rolled back. The doors are joined by a single zipper or velcro tabs, presumably to promote partial opening and better airflow. The bottoms of the vestibule doors do not touch the ground but are raised a few inches in an arc, also to promote better airflow and to reduce internal condensation.
Venting and Condensation System
While there are many reason to like the Obi 1P, one of the things that impressed me the most was the venting system and how the tent design works to defeat internal condensation. It the Achilles heel of many double-walled shelters, but I think Nemo has done a fine job of mitigating it with this design.
First off, there is an very large gap between the inner tent and the rain fly on the Obi 1p, which facilitates air movement and moisture venting. In addition, there are air vents cut into the rain fly at the front and back of the tent that direct breezes and air flow under the fly. The bottom edges of the vestibule panels are also curved and don’t touch the ground, allowing more air to blow under them and carry moisture out, especially if they need to be battened down in bad weather.
While I still experienced condensation using the Obi 1p when I had the vestibule closed, I experienced a lot less than other similar double walled tents that I’ve tested. With the vestibule open part way, internal condensation is further reduced, and unless it’s raining you’ll want to keep at least half of the vestibule area open. With both doors rolled back, there’s hardly any condensation, as would be expected in a tent with this much mesh ventilation.
When internal condensation does occur in the Obi 1p, it occurs on the nylon panel just above the sleepers head as a result of moist exhalations. While the amount of condensation is minor, it would be nice if Nemo ran the mesh above the sleeper’s head a bit lower than it is to vent more moisture, but that’s the only change I see being needed to this otherwise exceptional tent.
If you’ve got your heart set on a double-walled solo tent, I think the Nemo Obi 1p is a good choice. This is a really well made, well thought out, and versatile tent with a lot of different pitching and venting options. It’s easy to set up, packs down small, and is lightweight enough that it could be used very successfully for lightweight or ultralight backpacking. Hat’s off to Nemo on this one – I’m impressed.
- Roomy interior
- Excellent ventilation
- Lightweight – just under 3 pounds
- Easy to pitch
- Small bundle to pack
- Multi-segmented ridgeline pole is a bit awkward to fold and store
Disclosure: SectionHiker.com owns this tent and purchased it tent with their own funds.
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