I'm a hockey dad and the product is perfect. I am a true 3 x and with sweat sweatshirt it fits fine, when I sit down of course my stomach area is tight so I went up to a 4x just for a little more room when i sit down. The coat looks classy and nice. The Neck area heats up and keeps you warm, the rest of the coat does its job as well. When you put your hands in the pockets and lift them up a little bit they are kept warm as well. Love the battery size, it is as thin as a cell phone. The battery lasted 2 hockey games that were 17-minute periods so about 25 minutes with stops and then charged my Android phone up 30% before dying. ON HIGH the entire time. One of the lights wouldn't go off and Amazon sent me a replacement the same day. So I highly recommend this coat.. One thing to consider, my arms did get a little cold as I only had a sweatshirt on under it and the ice rink was cold. SO you may want to consider their long sleeve coat. Just a thought. I bought this for my son's hockey games so it is perfect to keep me warm and not look like a goofball at the same time. The coat looks classy and sporty. This is an honest review. I wouldn't think this coat is a winter coat. Just a great coat to keep warm with a sweatshirt. Maybe low 40's. Hope this helped