
Watch out sailor sisters! There’s a new line of sailor-themed clothing on sale and this time it’s the boys’ turn to come out and play. There won’t be any trousers or navy hats here though, because the only thing masculine about these clothes are the bodies that will be going into them.
It’s the Boku Sera (“I’m a Sailor”) range, which uses the Japanese male pronoun boku to highlight exactly what sets the clothes apart from all others we’ve seen before: these are girls’ sailor-style school uniforms, only now they’re built for male bodies.
The unusual roomwear items come from Bibi Lab, a design house which specialises in researching unique ideas and bringing them to life, no matter how wacky they seem. Previously, they’ve given us the full-body mosquito net jumpsuit; the snuggie that covers everything except your hands, nose and mouth, and even life-sized human-shaped pillows. Now they’re taking fleece to a place it’s never been before with two special man-sized sailor-style schoolgirl outfits.
The Pure White design features the blue and white colour scheme most commonly associated with Japanese schoolgirls, but if black is more your style, you can opt for a Darkness Black number. Both are available from Japan’s largest e-commerce site Rakuten Ichiba for 6,880 yen (US$57.71) each.

Bibi Lab designed these outdoor styles as “roomwear” items for a number of specific reasons. Firstly, it’s a great way for men to see what it’s like to wear women’s clothing. While some men have no problem with parading around in public in schoolgirl uniforms, more discreet gentlemen might prefer to dress up in the comfort of their homes, away from prying eyes.
And when you’re lazing about at home, you want to be dressed for comfort, which means you don’t want to be squeezing into tight, ill-fitting ladies clothes. Bibi Lab has you covered, by specifically designing their female outfits for the male figure.
▼As long as you fall between a medium or large size, according to the Japanese male sizing system.
Bibi Lab is also singing the virtues of wearing women’s clothing, pointing out that the roomy nature of the one-piece provides “zero stress” around the tummy area, meaning you can let it all hang out while remaining comfortably warm and covered at the same time.
The fleece material increases the comfort level of the clothing so you can lounge around with the lightest of ease. Now that we think about it, fleece uniforms in real schools might actually work, especially in those freezing Japanese classrooms during wintertime.
And for those after some girly details, a pair of knee high socks are included, perfect for showing off the much coveted strip of exposed thigh between skirt and sock.
In their usual light-hearted manner, Bibi Lab also claims that their product can reduce stress. If you’ve had a bad day, or if you’re worried about getting older, simply slip into the comfy sailor suit and all your worries will fade away.
▼ Because sometimes the stress relief of a no-pants lifestyle makes you feel like fireworks are going off behind you.
And if you’re a girl who never got to wear the distinctive schoolgirl outfit growing up, this is your chance to make lost dreams come true!
▼ From reading to gaming to playing with teddy bears, male models show just how comfortable life in a fleece sailor suit can be.
For a quick peek into the world of roomwear sailor uniforms, including a zero stress happy dance, check out the short clip below!















RocketNews24’s Meg models the entire line of Japan’s new schoolgirl outfit loungewear 【Photos】
Japanese schoolgirl roomwear takes sailor suit uniform to another level as wearable blanket
School bag cushions: The ultimate Japanese schoolgirl accessory
“Boku Sera” sailor uniform loungewear for men is back with a new version for spring
Japan’s schoolgirl roomwear outfits are ready for winter with new, extra-warm versions
12-year-old foreign tourist missing in Japan, police asking for help finding her [Video]
Study finds hundreds of people in Indonesia legally named after Naruto, Inuyasha, other anime stars
Japanese airlines set to cut fuel surcharges for international flights in September and October
The Japanese city where ordering grilled chicken doesn’t guarantee you’ll actually get chicken
Google’s first Google Store outside the U.S. is now open in Tokyo
Ride a tram that survived the atomic bombing of Hiroshima on a new limited-time history tour
Delta Airlines adds first nonstop flight between Japan’s Narita Airport and U.S. in seven years
Pokémon donuts are coming to Krispy Kreme in the U.S. [Photos]
7-Eleven Japan has a “Super Spicy! Taiwan Mince Cutlet” that’s fiery red… but how hot is it?
Studio Ghibli adds new Jiji’s baby plush toy to its anime merchandise range in Japan
Japanese toilet aims to attract foreign tourists but not everybody is happy about it
New Japanese vending machine at Shinkansen station sells cups of ice on platform
Japan’s new beer glass is designed to force you to drink…water [Video]
End of a manga era as Weekly Shonen Jump’s circulation drops under one million
Anime fan in Japan arrested for ordering and cancelling over 4.3 billion yen in anime merch
Beautiful Totoro bonsai figure needs no watering, makes soothing rain showers whenever you want
This beautiful rural Japan river is a great alternative to touristy summer retreats [Photos]
Beautiful off-the-beaten-path spot near samurai castle in rural Japan looks like a Monet painting
Tokyo subway installing new ticket gates that don’t accept payment through Suica or other IC cards
Japan now has human refrigerators inspired by Japanese vending machines
Hatsune Miku collaborates with Hokusai’s art in new Vocaloid ukiyo-e illustration series [Pics]
New Shinkansen luggage drop-off system begins in Japan, making train travel even easier
Studio Ghibli releases anime T-shirts that pay homage to one of Hayao Miyazaki’s most personal films
Air-conditioned dress shirts arrive in Japan to save working professionals from sweltering heat
Japanese Shinkansen becomes an overnight hotel for three nights this summer
Pokémon Center Online designates first Pokémon items that will require Japanese ID card to buy
99-year-old woman rescued while attempting to climb Mt. Fuji
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Studio Ghibli has a new anime out, and there’s only one place in the world where you can see it
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Salomon releases Japan-exclusive Mt. Fuji hiking gear that doubles as an amazing souvenir
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
The surprisingly deep differences of sailor suit school uniform collar styes – Kanto-eri and more
The sailor suit kimono combines two iconic fashions into one Japan-packed outfit
Give some Japanese schoolgirl style to your pet with the adorable schoolcat collar
Sailor uniform loungewear for men sells out in 2 days
Turn heads with new Japanese sailor-style school uniform swimsuits
Our reporter wears the Boku Sera schoolgirl outfit, visits Harajuku, takes purikura
Japanese sailor suit school uniform gets an upgrade with traditional kimono details
Japanese schoolgirl uniform lingerie now comes in see-through designs
When Ladybeard meets “Sailor Suit Old Man”, it’s an explosion of manly cuteness【Photos】
Japanese cosplayer dresses as female high school student for new road bike campaign
Manga-inspired sailor-style school uniforms now redesigned as dresses for everyday wear
Not everyone hates school uniforms: Japanese Twitter shows us why
Cosplay like an angelic student in a winged Japanese schoolgirl uniform
Off-the-shoulder schoolgirl dresses look like something Japan would love, but it didn’t make them
Hello Kitty cosplays as gun-slinging schoolgirl from new “Sailor Suit and Machine Gun” movie
Japanese middle school promotes long pants to full-uniform status for girls, equal with skirts