12V Cooling Vest with 24000mAh Battery Pack,Camouflage Air Conditioner Clothes, 360° Air Supply Cooling Jacket

It works – uses power banks!
This does keep you cooler! I live in Florida and it helps make the 90 plus temperatures tolerable. A major plus is that it uses the power banks. Unlike so many products of this type once the battery wears out in a couple hours your finished using it for the day. With this just swap it out with any power bank and keep cooler all day!!!One draw back is the fans are on your lower back so sitting in a chair doesn’t work so well as it blocks the fans. The material seems a little thin, hope it lasts.