Innovative vest with integrated fans and cooling technology maintains an ideal temperature of 25°C, ensuring you stay comfortable throughout the hot day.

Koojack Cooling Vest helps people stay safe and healthy during summer outdoor activities and prevents heat exhaustion or sunstroke.

Simply plug in the power bank, press the switch, and feel the coolness.

Small LED temperature display above the switch allows you to monitor the temperature inside the vest in real time.

The vest uses thermoelectric cooling, where a semiconductor material creates a temperature difference when an electric current passes through it.

Cool down in just 3 seconds with advanced semiconductor technology, feel immediate comfort in scorching temperatures.

Koojack Cooling Vest boosts human productivity and enjoyment during outdoor and high-temperature tasks.

Koojack Cooling Vest comes with a 5000mAh power bank, providing two hours of cooling power for nonstop comfort.

Koojack Cooling Vest eliminates the need for traditional cooling methods like ice packs or water bags, offering a modern and efficient solution.

Whether you are working on the farm, gardening, hiking, fishing, or cycling, Koojack Vest keeps you cool and prevents sunstroke.

Koojack Cooling Vest is durable, wear-resistant, and easy to clean, making it perfect for any high-temperature environment.

Intelligent temperature control keeps you at a perfect 25°C all day long. No more sweating in the summer heat.

Koojack Cooling Vest made for staying active in hot weather and enjoying fun summer outdoor activities.

Also check out: YDB Wearable Airbag Vest