
From busty cleavage to flat chest in seconds.
Ever since bras were invented, the aim of the brassiere has always been to provide support and comfort. In recent years, though, there’s been a shift in popularity towards enhancing the size of a woman’s bust, with push-up styles and padding to create the perfect cleavage.
So when we heard about a breast-flattening bra from Japan that offers what many others don’t, it immediately piqued our interest.
Called the Petamune Maker (“petamune” translates to “flat breasts”), the innovative bra is manufatured and sold by Japanese company Grand Bleu’s Hadakakushi division, which usually specialises in adhesive patches and sleeves designed to conceal rashes, scars, and tattoos.
The Petamune Maker is said to flatten B-H cup breasts, pushing them down so that they’re hardly visible.
The before-and-after shots above are certainly impressive, but given that these are photos taken by the company to promote the product, we couldn’t help but wonder if the effects would be equally as impressive front-on and in real-life.
Here to lay our uncertainties to rest is Japanese cosplayer and Twitter user @shiomi333871, who recently went viral with her own before-and-after shots using the product.
The image on the top right of the tweet below shows @shiomi333871’s bosom on a regular day, while the image on the bottom right shows how it looks with the Petamune Maker.
https://twitter.com/shiomi333871/status/1238506787214520320The change from noticeable cleavage to flat chest is dramatic, and Twitter users agreed, saying:
“I wasn’t sure about this product but after seeing this before-and-after I’m converted!”
“I bought one of these too and was so surprised by the results. Plus, it doesn’t feel tight to wear.”
“I wear this with kimono and it makes the lines of the clothing look neat and smart.”
“This would be useful when wearing a yukata summer kimono!”
“I need one of these to stop the shirt button from popping on my chest.”
“This is perfect not just for cosplayers but big-breasted women who want to exercise with maximum support.”
As the comments show, there are a wide range of uses for the bra in making everyday activities more enjoyable, from cosplaying through to exercising and traditional events where kimono are worn.
Wearers say the bra isn’t just dramatic in its chest-flattening abilities, but incredibly comfortable too. The Petamune Maker can be purchased online from the Hadakakushi site for 3,036 yen (US$28.44) or at sites like Rakuten and Amazon Japan.
And in case you’re in the mood to boost your bust rather than flatten it, Japan has you covered there too.
Source: Hachima Kikou, Hadakakushi via PR Times
Featured image: Pakutaso
Insert images: Hadakakushi
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!


Breast-flattening bra for cosplayers, women who want less bust-focused attention on sale in Japan
New Japanese bra liners cause cheers from women, complaints from horny dudes
Want big breasts? Japanese cosplayer shows how to boost your bust in seconds
Japan enters Golden Week vacation period, survey shows one in three plan to ride it out at home
Japan’s new Pokémon jackets give you the look and powers of the Kanto starter trio
Studio Ghibli releases new anime keychains that are like miniature figurines
Retro-style Evangelion T-shirts coming to Uniqlo sister brand GU[Photos]
Japan’s Mister Donut Japan tries its hand at Taiwanese-style street food donuts
Bandai cancels gacha/blind-buy system for anime cosmetics, will let fans choose what they buy
Only five branches of Japan’s beef bowl giant Matsuya serve milk shakes, but how do they taste?
Shinto shrine will bless your bike helmet and give you a sacred bike helmet stamp
Dorayaki from 89-year-old Japanese confectionery shop is one of the best sweets hidden in Tokyo
Tifa’s Final Fantasy VII bar is going to pop up in real-world Tokyo
New Kyoto Converse sneakers celebrate Japan with traditional kimono fabrics for your feet
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
Studio Ghibli launches huge new anime movie T-shirt collection with special design details
Brand-new Square Enix Cafe to open in Tokyo…and in Los Angeles too!
Japanese convenience store gives away free ice cream with creative ad at Shinjuku Station
Hello Kitty is now a transforming truck robot[Photos]
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
Pokémon and Ikea Japan cross over into each other’s worlds with collaboration events
Wisteria season starts early with blooming of Japan’s Great Wisteria in its beautiful garden
Japan’s best conveyor belt sushi restaurant of seven years ago has now, finally, come to Tokyo
Brand-new Pokémon manhole covers coming to help the recovery of a disaster-stricken part of Japan
Japan’s awesomely beautiful Alpen Route snow corridor is now open
Injuries on stairs in Tokyo highlight an overlooked design flaw
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
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