It's not a fan-based system. It's a vest that cools you by circulating ice water.

• Not just wind. The moment you switch it on, you'll feel an overwhelming coolness.

• Cold water envelops your body like a "surface." A new sensation in cooling systems that's comfortable and not bulky.

• Smart design for everyday wear. Can be worn under clothes, making it suitable for all situations, from commuting to outdoor work.

This summer cannot be overcome with conventional methods.

Japan's intense heat is worsening and becoming the new normal year after year.

Heat countermeasures are now essential.

However, do you feel limitations or dissatisfaction with existing heat countermeasures?

The limitations of fan-equipped clothing, which sucks in "lukewarm hot air" into your clothes, making you feel even hotter.

Water-cooled systems are heavy and uncomfortable. The tubes are bulky and restrict movement.

They look like workwear, making them unsuitable for everyday wear.

This water-cooled vest, "Ryoshun," was developed to fundamentally overturn these challenges of cooling wear.

Instantaneous coolness.

A system that circulates cold water

"Ryoshun" delivers "instantaneous" cooling, as its name suggests.

Equipped with a unique system.

The moment you flip the switch at your waist, cold water begins to circulate,

and you can feel the chilling cold flowing from your back to your chest.

There's no way it wouldn't be cool, because it circulates ice-cooled water.

Unlike air-cooled systems that utilize the latent heat of your sweat,

the cold water itself directly absorbs body heat,

allowing you to experience definite coolness the moment you put it on.

Air-cooled systems also have the disadvantage of sucking in dust, exhaust fumes, and other pollutants and delivering them to the neck area.

On the other hand, water-cooled systems circulate water, so of course, this does not happen.

Like air conditioning. Overwhelming cooling power

We demonstrate its cooling power not just as a feeling of "cool," but as an objective fact.

Experiments using a thermal camera show that not only the vest itself but also the surface of the body is thoroughly cooled across its entire area.

Thanks to an efficient water circulation system,

it rapidly lowers the temperature inside clothing in just about 1 minute, maintaining a comfortable temperature even in harsh blazing sun.

It operates for 9 hours in normal mode and 11 hours in energy-saving mode. Even if the ice melts, you can replace it and stay cool almost all day long.

"Surface" cooling makes it comfortable.

Ultra-thin "flat flow channel design" that can be worn under clothes

"Ryoshun" uses a soft cooling agent spread across a surface, not tubes.

This solves the common problems of conventional water-cooled vests, such as "hard tubes digging into the body" and "bulky appearance preventing clothes from being worn over it."

"Ryoshun" uses an extremely thin and flexible TPU (thermoplastic polyurethane) surface cooling flow channel sheet.

It increases the contact area with the body to enhance cooling efficiency while successfully minimizing thickness to the extreme.

Model wearing size: L

Since it completely eliminates any bulkiness,

you can wear work clothes, motorcycle jackets, or even a suit for commuting over it without any discomfort.

It achieves both smart style and the beauty of an "ultra-thin water-cooled inner layer."

(※Features of TPU material)

Instant cooling in just 4 steps

There's no need to prepare any special equipment.

We focused on ease of daily use.

Add water and ice:

Place 300ml to 500ml of water and frozen ice packs into the pocket on the back of the vest.

Connect battery:

Connect to a mobile battery (USB powered) and store it in the inner pocket.

Switch ON:

Press the button, and cold water will circulate within seconds, instantly bringing you to a world of extreme cold.

Endless cooling with ice replacement

The ice melted during a long outing.

Even in such cases, simply replacing the frozen plastic bottle or ice revives the cooling sensation instantly, again and again.

You can buy frozen plastic bottle drinks at convenience stores, so you're covered in emergencies.

Easy to clean.

Electronic parts such as the battery and pump are easily removable. The vest body is washable, allowing you to keep it clean and fresh without worrying about sweat or dirt in the summer. (Hand wash only)

Have good memories in summer.

Enjoy every scene

It's a shame to stay indoors just because it's hot.

You have to go out for work. You want to enjoy the outdoors.

"Ryoshun," with its sophisticated design and high functionality,

is useful in a wide range of situations, from professional settings to everyday leisure.

Model wearing size: LL

For construction and farm work: For combating harsh environments where fan-equipped clothing would become a hot air blast.

For motorcycle riders: Stay cool during rides in the scorching sun without compromising style.

For outdoor activities and leisure: Enjoy camping, fishing, golfing, walking your pet, and gardening in comfort.

For daily commuting and outside sales: As a secret cooling gear under your suit.

It will be your essential companion for work, play, and every summer scene.