Since I always seem to be cold, my heated vest has been wonderful. I love the fit of the more feminine chevron style - and so do those who have seen it on me. I wanted to wear it a few times before responding as I had 2 concerns: was the back heating as well as the shoulder and pockets, and was the battery working properly? The back still feels cooler to me and that may be because it fits less snug to my body. Possibly consider making a larger heat pad for the lower back. I’m still seeing if the batteries are ok. One seems to plug in better than the other, and I want to test each for how long they last. A few more wears to check them out. Thank you for helping to keep me warm 😊