The fit of this jacket is great! I was a little worried because I don't like to ski/snowboard in short jackets. I am always frozen when I go to Colorado, so I got this jacket before my trip. It kept me nice & warm without wearing too many layers. It's comfortable and EVERYBODY was commenting on the color - it's BEAUTIFUL! The jacket is honestly really cute & I'm picky. Battery lasts me most of the day. The battery is on the side of the hip. I like that you can choose from 3 heat settings. I'm about 5'3, athletic build like 115lb for jacket fit and I got a medium.