As the name ZENN suggests, this shelter was developed in pursuit of the “optimal solution for the Japanese mountains.”
From the beginning, our top priorities were lightweight design, compactness, and weather resistance.At one point, we even explored radical prototype concepts that sacrificed convenience entirely for the sake of performance. One such idea was a floorless dome shelter. It offered better space efficiency than typical floorless designs and was even lighter than conventional dome tents. We thought, “This might be it!” We pushed further—eliminating the entrance zipper entirely and instead having the user crawl in from the base. A bold concept—but as expected, it proved impractical in strong winds and had to be scrapped.

We also tested a prototype using an aluminum-laminated fabric to enhance heat retention inside the tent. Unfortunately, it suffered from severe condensation due to temperature changes during sleep, and that too was abandoned.

We went through many such trials, and while each one was fun and full of creative excitement, we struggled to find a true breakthrough. Eventually, we chose to set aside our designer egos and return to the fundamental purpose of a shelter. And in doing so, we arrived at a surprisingly simple answer:
“To sleep soundly and safely in the mountains.”
It’s a simple truth that good sleep leads to safer, more fulfilling days on the trail. It’s also the core function that most hikers seek from their tent.

With that renewed focus, we restarted the design process. The final result includes a zipper-entry and a waterproof bathtub-style floor—not for luxury, but entirely for dependable rest in the wild.

Revisiting and reimagining the classic alpine dome tent—long considered complete—was a thrilling experience, much like developing our ZENN backpack. And if you happen to spot this ZENN Shelter at a campsite this year, don’t be surprised if we come running over in excitement.
(Just make sure the door is zipped up properly!)

PACK AND GO!