I wear a small normally so ordered a small and it fit good. Big enough to wear a sweatshirt underneath and still not be too tight. I don't like wearing a jacket so this works good for me to wear on the regular. Its light weight but still warms me up before my car gets warm in the Wisconsin cold and is great for taking the dogs for a walk. You need to buy your own battery packs but I ordered 2  so I could charge 1 while using the other and is still ended up cheaper than the ones that come with the battery included.

Sarah

Since the pandemic I've been doing a lot more sunset walks but the weather starting to cool felt like it all.of sudden turned cold😂 I get very cold very easily, especially the place we live also very breezy at night, so this vest heats up and it's awesome keeps the body warm through out the walk .So glad I go these now I can take it to Tahoe too when we go snowboarding and not worry about getting cold. You do need your own portable charger though, so look for one that will be big enough to last you couple hours with out having to charge it. And recommend not to throw into the washing machine like it says it can, after all it has wires in the vest. I hand washed and hang dry mine. It's not thick and bulgy that's why I like it. 

Paige S

I ordered a name brand heated vest last year and since then has almost doubled in price. This is a great deal and much more compact and light weight. Having the heat in the neck area is what I wanted and recommend getting a vest without the battery included -- better value overall. I have so many portable batteries and can use any that I want.

The fit is even better than my first purchase of another brand. I am short, petite, equal proportion and the small fits great. The other always pokes me in the neck if I zip all the way up. This vest is not bulky at all and curles under my chin making it much more comfortable. I hate the cold and will put another lightweight jacket on top to hold in the heat.