Shiftall Launches ChillerX: Peltier-Cooled Vest for Hot Weather

Key Takeaways

1. Shiftall’s ChillerX cooling vest uses Peltier technology to provide effective cooling during hot weather.
2. The vest is expected to launch in Japan in August 2025, priced at 39,900 yen (about $275).
3. It circulates water to draw heat from the body, cooling it significantly below the ambient temperature.
4. The vest operates for up to 2.5 hours on a battery and can run indefinitely when plugged into a USB-C power supply.
5. Weighing 1.6 kg (3.5 lbs.), the vest is designed for easy cleaning and can be powered by renewable energy sources.

Shiftall has introduced the ChillerX cooling vest (SOP-C1W1G), which uses Peltier or thermoelectric cooling technology. This innovation aims to help users stay cool during hot weather by quickly removing excess heat from the body. The vest is set to hit the Japanese market in August 2025 with a suggested retail price of 39,900 yen (approximately $275).

Heat Concerns in Summer

Heatstroke becomes a major health issue during the summer months. Increased humidity can accelerate the onset of heat-related illnesses. Peltier coolers function by running electricity through two semiconductors layered together, creating a temperature gradient. This process generates warmth on one side and cold on the other, enabling the cold side to drop significantly below the surrounding air temperature. As a result, the ChillerX vest may cool the body more efficiently than traditional methods like sweating or using fans.

How It Works

The ChillerX is designed to circulate water throughout the vest, effectively drawing heat away from the wearer’s body. As the water moves through a Peltier cooler located on the back, it releases heat into the air while cooling the water to as low as 35 °C below the ambient air temperature, as claimed by the company.

Power and Convenience

The Peltier cooler is reported to operate for up to 2.5 hours on a 25,000 mAh battery and can run endlessly when plugged into a 20V 3A USB-C PD power supply. Users have the option to power the vest using renewable energy sources like solar panels. Various tested batteries can be utilized with the vest. Weighing in at 1.6 kg (3.5 lbs.) without the battery, the vest can also be separated from the cooler for easy handwashing.

If readers are unable to get their hands on a ChillerX, they might want to check out an ice vest available on Amazon.

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