"Carrying a wet umbrella on a crowded train is subtly stressful" Why the "amazing parasol" that sold 28,000 units makes commuting in the rainy season complete with just one umbrella | Limited sale on Rakuten on June 10-11

100% complete sun shade, 100% UV cut, rain-or-shine foldable umbrella "Hareshizuku". This is one umbrella that can be used on both sunny and rainy days from the rainy season to the height of summer.

Fun Standard Co., Ltd. (a member of the RKB Mainichi Holdings Group) will start a limited-time sale on Rakuten on June 4, 2026, for the "Hareshizuku" rain-or-shine foldable umbrella, which offers 100% complete sun shade and 100% UV cut, yet can also be used on rainy days, to support comfortable travel during the rainy season.

【Rakuten Market】24-hour limited-time sale
Sale period: June 10, 2026 (Wednesday) 10:00 – June 11, 2026 (Thursday) 09:59
On Rakuten Market, the manual open/close type will be sold for 1,980 yen, and the automatic open/close type, shape-keeping manual type, and automatic open/close + handy fan set are also discounted.
Rakuten Market product page
This product is also popular on the Amazon official store. Irregular limited sales and campaigns are held from time to time, so please check them out as well.
Amazon product page
*The shape-keeping type differs in size and accessories.

Over 28,000 cumulative units sold. The rain-or-shine umbrella won 1st place in the Rakuten Daily Ranking.
The "Hareshizuku" released in March 2025 exceeded 28,000 cumulative sales as of October 31, 2025, including pre-orders and mall sales.
It supports complete sun shade 100%, UV cut rate 100%, and UPF50+. It supports UV protection in the season when sunlight intensifies.

The foldable umbrella "Hareshizuku" is a rain-or-shine foldable umbrella that combines the functionality of a parasol with portability for everyday carrying.
It uses fabric with complete sun shade 100%, UV cut rate 100%, and UPF50+ to support UV protection in seasons with strong sunlight. Furthermore, it has water repellency level 5 and water pressure resistance over 10,000mm, making it easy to use even during the unstable rainy season.

The awkwardness on crowded trains and the worry of a damp bag. The "wet umbrella storage problem" that troubles rainy season commuting.
Comes with a super absorbent umbrella cover that can quickly store a wet umbrella. The inner microfiber absorbs water droplets, supporting portability when out.

During rainy season commuting, people often feel stress from "the weight of carrying both a rain umbrella and a parasol" and "where to put the wet foldable umbrella."
If you hold a wet umbrella in your hand on a crowded train, you worry about whether it might hit people around you or about water droplets falling on the floor. If you put it in a bag, you worry about dampness, and if you leave it in a stand at restaurants or hospitals, you worry about theft or mix-ups.
Hareshizuku is designed to reduce these "where to put the wet umbrella" problems on rainy days and allow you to move lightly with just one umbrella on both sunny and rainy days.

Reliable body specifications for rainy days and an absorbent cover that considers portability after getting wet.
Rain-or-shine specification that can also be used as a rain umbrella. It focuses on water repellency and water resistance, handling sudden rain during the rainy season.
Water repellency level 5 and water pressure resistance over 10,000mm. Equipped with water resistance that can handle heavy rain.

Hareshizuku is a rain-or-shine specification that can be used on rainy days while being a parasol with 100% complete sun shade and 100% UV cut. The fabric is treated with water repellent and waterproofing, offering water repellency level 5 and water pressure resistance over 10,000mm.
Also, a dedicated absorbent cover with microfiber on the inside is included. After use in the rain, you can quickly fold the umbrella and store it in the cover, which absorbs water droplets inside. The outside is made of water-repellent fabric, so when putting it in a bag, it is designed to keep other items from getting wet easily.

Large size but easy to carry. Practical for daily use from rainy season to midsummer.
With a rib length of 107cm and open diameter of 97cm, the coverage area is about 16% larger than typical women's parasols. It protects well from sunlight and rain.
Compact design that fits neatly into small bags. The fabric is not stiff, making it easy to carry for daily commuting and school.

Hareshizuku has a large size with a rib length of 107cm, open diameter of 97cm, and parent bone length of 55cm to protect from sunlight and rain. Compared to typical women's parasols with a diameter of 90cm, the coverage area is about 16% larger.
On the other hand, the manual open type weighs from 126g, and the one-touch automatic open/close type weighs from 203g. It is easy to incorporate into days when you want to reduce luggage, such as commuting, school, shopping, travel, and picking up children.
It features 4-layer coating for complete sun shade and high-density 20D 400T polyester fabric, focusing on both lightness and material functionality.

Limited-time sale on Rakuten Market from June 4.
To allow more people to experience the comfort of the rain-or-shine umbrella "Hareshizuku" before the full rainy season and the following intense summer, we will hold a limited-time sale on Rakuten Market.
During the period, eligible products will be offered at special prices. If you want to prepare for rainy day travel, outings on sunny days, or sudden weather changes, please take this opportunity to check it out.