
We give this notebook the wet and wild treatment!
When you’re looking for a new notebook, what qualities do you look for in the paper? Thickness? A glossy finish? Smooth to the touch? Well, for true stationary aficionados, the best kind of paper is, without a doubt, waterproof paper. Whether you’re caught out in the rain while writing meaningful poetry, or you suddenly get a stroke of inspiration for song lyrics whilst in the shower, a waterproof notebook is an absolute must-have item.
Us writers here at SoraNews24 are also in dire need of such a notebook. Of course, we all have perfectly normal working computers, but for times where we’re getting down and dirty on the job, such a notebook would be ideal to catch the showers of our sweat. So it was with this thought that we came across the “Water Repelling Notebook“. This isn’t a new product by any means, but how well would it actually work? We decided to put it through the wringer.
The notebook, made by stationary company ‘Apika’, claims to use ‘Rain Guard‘ paper. The notebook costs 250 yen (US$2.30) for 70 sheets, which may be a little pricey for a normal notebook, but sweaty folks like us would probably be more than willing to splurge on such a necessity.
To keep the experiment fair (we’re serious about science, after all) we compared the waterproof notebook to two ‘control’ notebooks; one from Muji and one from 7-Eleven.
Our experiment consisted of three rounds: one round using an oil-based pen, one round with a water-based pen and the final round with a pencil. In all three rounds, the paper would be doused with water and then fiercely rubbed, to see how well it could hold up. How would the Rain Guard paper do in all three situations? The Muji notebook was made from 50-percent recycled paper, so sadly for Muji it seemed the battle was over before it had even begun. But let’s see!
▼ It’s soaking time!
There didn’t seem to be a huge difference between the three; the lettering seemed to keep their shape, more or less. So we gave the paper a bit of a rub.
Amazing! The soggy Rain Guard paper withstood the fierce rubbing and the lettering didn’t smudge at all! If it could hold up to this much water, a little bit of rain or sweat would be no issue at all!
So the oil-based pen held up well to the drenching, but how about water-based pens? Let’s find out!
Uh oh! Looks like Muji might crash out of the competition here! Even before we turned on the water, the Muji paper didn’t look like it would survive the round. The Rain Guard paper wasn’t looking too hot either, with the lettering smudging at the bottom. What will happen when we make it rain?
As you can see, the Rain Guard paper writing gets even more smudged. Could this be the 7-Eleven paper’s round?! Time to start rubbing!
The rubbing seems to have ‘erased’ the smudged ink, and the writing is legible again. This is definitely impressive, seeing as both the Muji and 7-Eleven paper just disintegrated against our vicious rubbing. ‘Rain guard’ paper wins this round! An unbelievable comeback from Rain Guard!
The final round was using pencils. Pencils are, by design, made to be erased; they’re certainly not as durable as their pen counterparts. Would the Rain Guard paper be able to withstand the final watery test?
▼ The final stage is set!
As usual, MUJI crashed out of the competition early. Thanks for participating, MUJI!
And now, for the much anticipated rubbing…
As you can see, it didn’t give under our fingering at all. It didn’t rip or crumble, and the writing was perfectly legible, even after the soaking and the rubbing. It really is an impressive little notebook!
Are you someone who likes to take notes in the rain, in the shower or in a pool? Are you someone who sweats so profusely that you can’t read what you’ve written down on normal, boring paper? If so, this nifty little notebook may just be the thing you need! Alternatively, if you can’t get your hands on one of these bad boys, you can try out this life hack next time you spill something on your favourite bit of stationery. Stay dry out there, folks!
Images: ©SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!
[ Read in Japanese ]










SoraNews24 quiz: How men deal with unexpected urine leaks determines their personality
Tokyo government organizes food truck event to clear out delinquent/homeless teen gathering area
This Japanese vending machine doesn’t sell drinks, but you can buy drinks through it
Japanese onsen egg maker from 100-yen store Daiso needs to be on your shopping list
Godiva now makes tofu in Japan, and sakura chocolate tofu too![Taste test]
How much is Amazon Japan’s lowest-rated currency calculator worth in yen?
When will the cherry blossoms reach full bloom in Japan this year?[Forecast]
We asked our Japanese team of writers how they deal with seasonal allergies in Japan
Universal Studios’ Sailor Moon theme park attraction is finally coming to America
Akiba Dental Clinic: The Akihabara dentist where a moe maid in cosplay cleans your teeth
Peko-chan Milky Time Cafe opens in Chiba and we go to check out all of the pastries and merch
Train station platform ramen store closes its doors on half a century of history in Tokyo
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
Studio Ghibli adds new Mother’s Day gift sets to its anime collection in Japan
Starbucks Japan releases new My Fruit³ Frappuccino at only 34 stores around the country
Virtual idol Hatsune Miku redesigned with look that adds new elements and brings back old ones
The next time you’re feeling stressed out, you could relax on a Pokémon Psyduck chair from Japan
Cherry blossoms begin blooming in Japan with record-early starts for sakura season
Komachi Shokudo: Japanese mum’s-style cooking for breakfast, lunch and dinner in Tokyo
The top 10 graduation songs in Japan as chosen by current Japanese high school students
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Nine great places to see spring flowers in Japan, as chosen by travelers (with almost no sakura)
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Starbucks Japan releases first-ever Hinamatsuri Girls’ Day Frappuccino
Japan’s cherry blossom season predicted to start earlier than we’d thought, especially in Tokyo
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
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