
One woman and five men with different physiques show how much your breasts can grow with just one T-shirt.
It wasn’t long ago when we first heard about the Illusion Grid T-shirt from Japanese fashion company ekoD Works, which uses some neat visual trickery to create the illusion of a busty chest.
Since then, the garment has been tested by celebrity cosplayer Inagasaki Sakura, which inspired our team of Japanese-language reporters to get on board with the trend by conducting their very own experiment in the office, with both female and male staff members trying the shirt on for size.
▼ As you can see, the T-shirt uses implied perspective to make less-than ample bosoms appear large.
First one up to try the T-shirt was Momo Momomura, who said she was “thrilled to finally have the big breasts of my dreams”. While she was happy to admire her chest in the privacy of the office, Momo was quick to admit that she wouldn’t feel comfortable wearing the shirt outside because it would make her feel like a fraud. After all, if she did find a lover while wearing the shirt, the truth would eventually be revealed once her top came off in the boudoir.
Interested to see how the garment would look on a man’s body, Momo took the bust-enhancing shirt over to our male Japanese-language reporters to see how it would alter their flat chests. Ahiruneko was first to step up to the plate, with his body type most closely representing an ordinary, common Japanese male physique.
▼ Strangely, Ahiruneko’s “breasts” ended up looking square-shaped when he wore the shirt.
Next up was Yoshio, who, with his medium build and medium height, has what Momo endearingly calls a “dad bod”. According to Momo, the shirt actually looked hot on him, enhancing his sex appeal immediately.
Then it was time for two of our most buff reporters to try the shirt on, pulling it over their muscular frames with ease and strutting around to gauge everyone’s opinion. Go (below left) actually did a set of push-ups before wearing the shirt, to make sure he was in top shape for his photo. P.K., on the other hand, was confident that the shirt would look good on him, happy to receive the extra chest enhancement.
▼ According to Momo, the shirt worked well to enhance their pecs, but did nothing for their sex appeal. Sorry, guys!
Finally, it was time for the shirt to be worn by one of the slimmest members of the team, Kawarano, who’s also known for having the flattest chest in the office. Unable to gain weight no matter what he eats, Kawarano is the envy of his female colleagues, and when he tried the shirt on, they all squealed with cries of jealousy again, saying that the look suited him perfectly.
▼ Momo went so far as to say that if you looked only at his chest, you’d swear it was the bust of a well-endowed woman.
At the end of the experiment, Momo had her clear favourites for the staff member who wore it best.
▼ Clockwise, from top left: Kawarano, Go, Ahiruneko, Momo, P.K., Yoshio
Now it’s over to you, dear readers! Who do you think wore it best? Cast your vote in the poll below and let us know what you think. Happy voting!
[ Read in Japanese ]











Japanese idol shows just how well the optical illusion boob shirt works
D-cup duplicity: Japanese T-shirt uses optical illusion to give breasts to even the flat-chested
Optical illusion boob shirts from Japan get new models and tricks to fool/please the eye
Celebrity cosplayer tests Japan’s new breast-enhancing optical illusion T-shirt【Video】
Optical illusion sticker from Japan gives cat companionship to people in no-pet apartments
Gundam teams up with 300-year-old daruma maker for wood-carved anime mecha figures[Photos]
Tokyo’s new extra-expensive ramen restaurant is dividing opinions, so we tried a bowl
Japan’s instant ramen snack theme park features an athletic course even adults can enjoy
Used chopsticks upgraded from “waste” to “valuable material” by Kawasaki City thanks to ChopValue
Pizza Hut Japan’s drinkable curry pizza is here – Is it all we dreamed it would be?[Taste test]
Japanese temple burns to the ground, fire burning inside for 1,200 years unharmed
Bizarre Japanese vending machine sells “Peace and Equality” and “Angels and Demons”
Kanji ice cream becomes a sell-out hit in Japan
Starbucks Japan hoping fans will go bananas for its new mottainai banana affogato Frappuccino
Krispy Kreme Japan is bringing two special donuts to the most-forgotten big city in the country
Japan has a new cute and clever sunblock for cat lovers
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
This Tokyo Station sweets sensation sells out daily, but we finally got our hands on it
Japan’s izakaya pubs closing at record pace, failing to attract foreign tourists
Ichiraku Ramen-inspired ramen sets from Naruto anime pay homage to Naruto, Sasuke, and Sakura
The story of our reporter P.K. Sanjun’s heart attack
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
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
Tifa’s Final Fantasy VII bar is going to pop up in real-world Tokyo
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
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
Cute Japanese hamster T-shirt has a secret weapon: boobs【Photos】