First vest died after a few weeks. The company was excellent at sending a new one to replace it. The replacement just died after a few weeks. Basically, the vest light blinks all three colors and then nothing. A few seconds later, it blinks all three colors again, and then, again, nothing. It used to start heating after the 3 blinks. This is exactly what the first one did. The vest isn't even cute enough to wear on its own. I have a heated vest from another company that I, umm, outgrew. I will be buying another one of those since I had it for several years with no issues.