I'd no idea if This might basically work and was skeptical over the heat longevity. I read quite a few, a lot of reviews (typically quite constructive) and deiced about the vest design. Just one measurement really does match most, if not all. They've an easy swap in a https://howlongdoheatedvestslast29405.onesmablog.com/how-long-does-a-heated-vest-last-an-overview-72634904