※ Operation confirmed Material composition: 100% polyester Washing instructions: Machine wash [Air-conditioned Work Clothes & Fan Battery Pack]: Air-conditioned work clothes * 1, battery * 1, fan * 2, connection line * 1, battery charging line * 1. The latest design of the work clothes takes in outside air into the clothes with small fans attached to the left and right waists, and applies a large amount of wind to the body surface to remove sweat from the body. Then, due to evaporation, the temperature around the body rapidly decreases. [Large Capacity Battery] Equipped with a 20000mAh large capacity battery, the usage time is about 6.5 to 12 hours depending on the output voltage, so you can use it with confidence even when working outdoors. [Unisex, Machine Washable]: Not only can you work in a hot environment, but it also lowers the temperature of the work environment. It is also very convenient for cleaning. Since it is made of a material that does not easily stain, cleaning is more convenient and easy. With a simple appearance, it can be used by both men and women. It is resistant to deformation and provides the best comfort. Please note that you need to remove electrical appliances such as fans and batteries before washing the vest.