OUTDOOR
2025.08.08
【Tansu no Gen】Back fan pocket!? Direct cooling with the combination of cold packs
The days of enduring the heat under the blazing sun are over. With the revolutionary T-shirt featuring a back fan pocket, I want to spend every day feeling cool and comfortable!
The mini air conditioner is attached to the back pocket

What is this! I couldn't help but do a double take at the Gen of Tansu's "It's no longer a fan. The Sarihya shirt." As shown in the picture, there are pockets from the collar to the back, where a dedicated fan is inserted into the back pocket, and by securing the cord inside the shirt loop, it can diffuse cool air from the back. It forcibly draws in outside air while circulating the cool air from the ice packs throughout the body via the plate.
The wind volume has three levels: low, medium, and high. The fan is also removable, so it can be adjusted according to the season and temperature.
The wind volume has three levels: low, medium, and high. The fan is also removable, so it can be adjusted according to the season and temperature.
Uses pleasantly textured cross mesh

To ensure that the fan on the back does not directly touch the skin, the pocket features a double cross mesh structure lining. Even during sweating, the mesh disperses moisture, keeping good skin separation. There is no discomfort from the unevenness when wearing a backpack or chest harness.
The main shirt also uses "Sarihya" material. This shirt made of contact-cooling fabric, which excels in moisture wicking and quick-drying (Q-max value 0.21), does not feel sticky even when sweating. The neckline is V-neck style, and it's great that it doesn't feel suffocating even with the fan inside!
The main shirt also uses "Sarihya" material. This shirt made of contact-cooling fabric, which excels in moisture wicking and quick-drying (Q-max value 0.21), does not feel sticky even when sweating. The neckline is V-neck style, and it's great that it doesn't feel suffocating even with the fan inside!
Cords and batteries can be stored compactly

The shirt itself is equipped with a pocket specifically for a mobile battery and a cord loop. It organizes the often dangling cords neatly to prevent any snagging. The 10×15cm battery pocket at the waist ensures there's no trouble finding a place for the battery.
With a standard 5000mAh battery, it runs approximately 4 hours on high mode and about 7 hours on low mode. It can also be used as a mobile battery for smartphones or as a portable power source during power outages. It can be easily replenished from a car USB, making it convenient for drives.
With a standard 5000mAh battery, it runs approximately 4 hours on high mode and about 7 hours on low mode. It can also be used as a mobile battery for smartphones or as a portable power source during power outages. It can be easily replenished from a car USB, making it convenient for drives.
Available in 2 colors and 4 sizes, suitable for both men and women.

The color variations include two basic colors: white and black. The sizes range from S, M, L, to LL, and although it's unisex, the stretch underarm rubber allows for a more customized fit.
Since the fan set and the shirt are sold separately, you can also purchase just the additional shirts for washing. This ensures you always stay clean, even during extended camping trips or multiple-day events.
Since the fan set and the shirt are sold separately, you can also purchase just the additional shirts for washing. This ensures you always stay clean, even during extended camping trips or multiple-day events.

Of course, it’s perfect for outdoor events in the summer, and it can also be worn as an undershirt in spring and autumn. On hot days, try "wearing" the air conditioning.
Product name: No longer air conditioning. Sarahiya Shirt Fan Set
Price: 3999 yen
Manufacturer: Tansu no Gen
Size range: S, M, L, LL
Material: Contact cooling polyester, stretch mesh
Fan diameter: approximately 11cm (3 wind speeds)
Compatible battery: Mobile battery of 5V2A or higher (sold separately)
Continuous usage time: Low 6-7 hours, Medium 5-6 hours, High 4-5 hours (when using a 5000mAh battery)
Included items: 1 fan, 1 remote control cable, 1 ice pack, 1 shirt
Color: White, Black
● Tansu no Gen
Price: 3999 yen
Manufacturer: Tansu no Gen
Size range: S, M, L, LL
Material: Contact cooling polyester, stretch mesh
Fan diameter: approximately 11cm (3 wind speeds)
Compatible battery: Mobile battery of 5V2A or higher (sold separately)
Continuous usage time: Low 6-7 hours, Medium 5-6 hours, High 4-5 hours (when using a 5000mAh battery)
Included items: 1 fan, 1 remote control cable, 1 ice pack, 1 shirt
Color: White, Black
● Tansu no Gen