“I received this fleece vest as a Christmas 2022 present and was excited to try it at work. I work in an industrial building that isn't temperature controlled so winters can get cold. Past winter temps ranged around 15 *F - 45 *F. The vest gets nice and warm. I like the 3 different heat settings because mornings i use high and as temps change, I can adjust to medium or low. You do have to do your part to add layers to keep warmer. It is a vest so you'll have exposed arms/thin clothing which will be cold, so I wear thermal long sleeves under my vest and I'm very comfortable. I have ease of use with my arms for work rather than wearing a bulky coat, and I feel the warmth of the vest just fine. I did buy 2 batteries because some days I use 1 full one and half of the 2nd. The battery usage time is consistent with what Ororo says. I have large I'm 5' 6" and 160 lbs. Overall very happy with my vest.”