
It’s like an adult version of a cardboard fort.
The 2017 G7 Summit has prompted many nations to crack down on environmental problems in earnest, and Japan is one of them. It’s not just the citizens, though, it’s also companies like Family Mart and their new focus on eco-friendly onigiri packaging.
Toyo Seikan Group Holdings, another large company, has been tackling sustainability recently with their Open Up! Project where they challenge themselves to come up with environmentally friendly solutions to issues. One such solution is a cardboard tent called the Dan Dan Dome that’s durable, waterproof, and 100% recyclable.
▼ It even has windows! You might have to cover them up if it actually rains, though.
The Dan Dan Dome was designed in collaboration with architect Yusuke Murakami, who specializes in architecture suited for polar and other extreme environments like the Himalayas. While in those areas, he spent a lot of time in plastic tents that were heavy, not homey, and definitely not friendly to the environment, so came up with new designs that aren’t so heavy and are more sustainable. After seeing his work, Toyo Seikan Group Holdings enlisted him and packaging specialists at Nihon Tokan Package to create the Dan Dan Dome, and the result is this ingenious, sustainable idea.
Cardboard and water normally don’t mix, but Dan Dan Dome’s cardboard is coated with the same kind of recyclable laminate that’s used in paper cups, which is where the waterproofing part comes in. Clever, right? And while it’s not 100-percent waterproof, it will get you through the night.
▼ You can even watch movies on the ceiling while you’re relaxing inside.
To assemble the dome, all you need to do is pop out the joint perforations and lock them into place as shown in the photo below, then use waterproof tape and plastic grip lock ties to join the sections together. Don’t worry, it comes with instructions, kind of like IKEA furniture. The only downside we can imagine is that it might be difficult to put the dome’s top on if you’re assembling it solo.
Aside from camping and outdoor events, the designers say that Dan Dan Domes can also be used as temporary shelters during disaster relief operations. Besides being durable and water-resistant, they’re also designed to be cozy and give you a sense of privacy at times where that may otherwise be difficult. Many emergency shelters in Japan are public school gymnasiums, so any ounce of privacy in that kind of situation is sure to be appreciated.
Dan Dan Domes will be available on their official site starting this fall, and they’re available in three different sizes. Travel in Japan may still not be the best thing to do right now, but consider this another thing to add to your wishlist for future travel plans!
Sources: PR Times, Dan Dan Dome
Featured image: PR Times
Insert images: PR Times, Dan Dan Dome
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!
[ Read in Japanese ]






Japan has a new cute and clever sunblock for cat lovers
Japan’s izakaya pubs closing at record pace, failing to attract foreign tourists
Kanji ice cream becomes a sell-out hit in Japan
The story of our reporter P.K. Sanjun’s heart attack
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
Japan has a new cute and clever sunblock for cat lovers
Japan’s izakaya pubs closing at record pace, failing to attract foreign tourists
Kanji ice cream becomes a sell-out hit in Japan
The story of our reporter P.K. Sanjun’s heart attack
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
Suspected yakuza member arrested for having frequent flyer mile account
Starbucks Japan has a secret breakfast set…and a hack for when it sells out
Do Bare Feet of a Gorilla slides really make your legs slimmer?
This Tokyo Station sweets sensation sells out daily, but we finally got our hands on it
Studio Ghibli adds mini pillows and massive mats to its anime merchandise store in Japan
Ichiraku Ramen-inspired ramen sets from Naruto anime pay homage to Naruto, Sasuke, and Sakura
Hundreds of rose bushes in bloom at Tokyo’s off-the-beaten-path, next-to-the-tracks flower street
161-year-old Kyoto confectionary maker releases new edible Pokémon lineup
Studio Ghibli’s president is leaving the company. Will it change how they make anime?
7-Eleven Japan is releasing Greedy chocolate chip and whipped cream sandwiches
Let’s hike a Japanese mountain (that isn’t Mt. Fuji) – Mt. Tsukuba[Photos]
The top 12 incomprehensible school rules, as chosen by high school students
The average age of Japan’s hikikomori shut-ins is getting older, survey shows
Japan enters Golden Week vacation period, survey shows one in three plan to ride it out at home
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
New Kyoto Converse sneakers celebrate Japan with traditional kimono fabrics for your feet
Japan’s new Pokémon jackets give you the look and powers of the Kanto starter trio
Japan now has gyoza doughnuts, and they taste like no other doughnut we’ve tried before
Studio Ghibli launches huge new anime movie T-shirt collection with special design details
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Suspected yakuza member arrested for having frequent flyer mile account
Starbucks Japan has a secret breakfast set…and a hack for when it sells out
Do Bare Feet of a Gorilla slides really make your legs slimmer?
This Tokyo Station sweets sensation sells out daily, but we finally got our hands on it
Studio Ghibli adds mini pillows and massive mats to its anime merchandise store in Japan
You’ll never win cash or prizes or cash at this Tokyo pachinko parlor, and that’s why it’s so cool
Starbucks Japan hoping fans will go bananas for its new mottainai banana affogato Frappuccino
7-Eleven Japan adds macaroni cheese sandwiches to its convenience store food range
Ichiraku Ramen-inspired ramen sets from Naruto anime pay homage to Naruto, Sasuke, and Sakura
McDonald’s Japan’s new Chiikawa Happy Meal figures are here![Photos]
McDonald’s Japan adds curry French fry flavor, regional-taste burgers to its menu with Gotochi Mac
2021 Salaryman Poetry Battle showcases some dark but hilarious poems
Mister Donut’s beyond super soft and chewy beyond mochi mochi donuts have returned
Starbucks Japan adds a new Frappuccino and Milk to the menu, but are they worth the calories?