Thermogem Far Infrared (FIR) vest.
I wanted a FIR vest because I did not want to lie flat as a FIR bed would require. The vest gives me more freedom to do other things while the vest is being used. I was ready to pay more for the quality of the Thermogem vest because I want uninterrupted use for a long period. Thus far, after several weeks, I have used it multiple times with no problems. I was even contacted by the manufacturer, which was unexpected, but appreciated. The physics of the unit are overwhelming to say the least, but I do not need to understand how it works.
Verified purchase: YesCondition: Pre-owned