
The Amazon.com product review section has become something a creative writing outlet for the witty and sarcastic. In the right hands, these hilarious parody reviews can actually helps boost sales of the product (for all the wrong reasons) or even turn it into an internet phenomenon.
Yet every once in awhile — and this applies to Japan in particular — there will be a product on Amazon with reviews that are so disturbing, you can only pray for the sake of humanity that they are an uncoordinated series of cruel jokes.
This navy blue girl’s one-piece swimsuit offered on Amazon Japan is one such product, and anyone familiar with the word hentai can probably guess why…
Officially labeled the “Two-Way One-Piece Swimsuit Large (White Piping) Navy Blue Girl’s (School Swimsuit・One Piece)“, the product is nothing more than your standard regulation swimsuit worn by Japanese elementary school children for swim lessons. But that’s exactly what makes the following customer reviews so sick:
★★★★★ Feels good on the skin (2205 out of 2280 customers found this review helpful)
I’m a 170cm-tall male, so this swimsuit is a little tight, but it seems the fabric is elastic and I’m able to wear it without any problems.
But when I actually wore it for my friends, I was a little disappointing when they said it looked like one of those wrestling uniforms. I think it would be a perfect fit for someone a bit shorter and with smaller shoulders.
My thoughts after trying it on are that it feels good on the skin. Wear it instead of regular underwear when I go outside gets me really aroused.
I think wearing knee-high socks with it would make it feel even better.
However, it’s disappointing that it doesn’t come with a bra pad. I think I could have gotten more aroused if there was a bra pad.
I think this product might be better suited for females rather than males.
No sh$%, creepo.
★★★★★ Made from good materials (519 out of 555 customers found this review helpful)
This swimsuit is incredibly comfortable and perfect for swimming. I’m glad I bought it.
I’d like to use it year-round, but wearing it under layered clothing in winter feels suffocating and, while it’s perfect on it’s own during the summer, it may take some confidence to wear it out.
Also, it feels a little embarrassing because my crotch bulges out when I wear it. It’s hard to say if this is a drawback or a feature, but it probably won’t be a big issue for girls.
Yes, we’re glad it’s elastic and fits you too. Just keep it to yourself…
★★★★★ Pleasure inversely proportional to perversion (519 out of 555 customers found this review helpful)
I’m 165cm-tall and am able to wear this swimsuit without any difficulty. When I wear this to work I am plunged into indescribable feelings of pleasure from the thrill that my coworkers might find out what I’m wearing.
To like-minded swimsuit enthusiasts, I also recommend wearing it to the public pool. It’s hard to find a time when no one else is around and I’ve only been able to do it twice myself, but if you can get in the water and swim around you can experience a sensation like you have never known before.
When I entered the pool, I gradually lowered my body into the water and the tight-fitting material slowly loosened as it absorbed the the moisture. When you finally submerge yourself completely and the wet cloth clings to your body, you completely lose yourself in sensual pleasure. Bringing yourself out of the water, your body feels slightly heavy and you can feel the water pressed between your body and the swimsuit and the moisture absorbed in the swimsuit itself drip down gradually.
There are just some of the ways you can use your school swimsuit.
However, drying the swimsuit is no easy task. I live with my wife and two children and so I can’t leave it out. I thought about hanging it to dry in my room, but it left water drops on the floor. Please exercise caution.
Well at least this reviewer keeps it practical and provides a few helpful descriptions of how to use the swimsuit. And it should make for the perfect piece of evidence in court!


Amazon Japan Reviewer Shares Thoughts on Bulletproof Riot Shield: “Ideal for Snowboarding and Domestic Disputes”
More and more Japanese moms agree: boys should wear girls’ swimsuits
We try Amazon Japan’s lowest-rated ab roller with elbow supports, reviewed as “The literal worst”
Middle-Aged Man Reviews Cute and Girly DS Fashion Game: “This Game Opened My Eyes to Style!”
Japanese Amazon reviewer tells us why Alien vs Avatar is awesome and Dark Knight sucks
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
Kyoto raises hotel accommodation tax to fight overtourism, travelers could pay up to 10 times more
Sakura Festival in Chiyoda mixes illuminations, boats, music, and Rilakkuma in the heart of Tokyo
The best Hobonichi diaries, covers and stationery for 2026
Chance to play Tetris on a massive staircase in Kyoto Station coming in March
Gacha capsule toy machine sells Casio watch rings in Japan, and we try to get all of them
Is Tokyo Station’s startlingly expensive wagyu bento boxed lunch worth its high price?[Taste test]
Japan’s craziest burger chain takes menchi katsu to new extreme levels
Creator of Rurouni Kenshin anime/manga admits to possession of child pornography
Foreign tourists in Japan will get free Shinkansen tickets to promote regional tourism
Starbucks Japan releases first-ever Hinamatsuri Girls’ Day Frappuccino
Japanese restaurant chain serves Dragon Ball donuts and Senzu Beans this spring
Japan Extreme Budget Travel! A trip from Tokyo to Izumo for just 30,000 yen [Part 1]
Highest Starbucks in Japan set to open this spring in the Tokyo sky
Japan Extreme Budget Travel! A trip from Tokyo to Izumo for just 30,000 yen [Part 2]
Japan has only one airport named after a samurai, so let’s check out Kochi Ryoma【Photos】
Japanese drugstore sells onigiri at pre-stupid era prices, but how do they compare to 7-Eleven?
Viral Japanese cheesecake from Osaka has a lesser known rival called Aunt Wanda
Which convenience store onigiri rice balls are the most popular? Survey reveals surprising results
Japan’s newest Shinkansen has no seats…or passengers [Video]
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Foreigners accounting for over 80 percent of off-course skiers needing rescue in Japan’s Hokkaido
Super-salty pizza sends six kids to the hospital in Japan, linguistics blamed
Starbucks Japan unveils new sakura Frappuccino for cherry blossom season 2026
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Take a trip to Japan’s Dododo Land, the most irritating place on Earth
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Is China’s don’t-go-to-Japan warning affecting the lines at a popular Tokyo gyukatsu restaurant?
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
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
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
New Japanese “school swimsuits” for adult women are a stylish skirted take on one-piece swimwear
We bought a low-rated levitating speaker on Amazon that made us want to cry
Japan’s first genderless, two-piece school swimsuits are now available for the public to purchase
We test out the portable shower backpack Amazon recommended to us (which also only has two stars)
It’s a race against time with Amazon Japan’s lowest-rated hourglass
Crummy Japanese dish dryer still gets five-star reviews on Amazon for unexpected reason
Japan’s “strongest roach killer” is frighteningly effective… We mean FRIGHTENINGLY effective
What happens when a guy goes to a Japanese women’s swimsuit store and asks for their best bikini?
Heroes in Japan post harsh reviews for a Hero’s Sword on Amazon Japan
Our one-star Halloween mask from Amazon has arrived! …in mid-November
From Cardigans to Carjackings: The best sellers of Amazon Japan in 2013
Game Review: New dating sim takes you back to school days of flirting with soft-shelled turtles
How bad can the lowest rated three-piece suit from Amazon be?
“Customers also bought…”: Product searches for rope on Amazon JP yield creepy results
We brave the winter with the lowest-rated gloves from Amazon Japan