When temperatures drop, it doesn't matter how chic your outfit is if your coat isn't up to par. It's the one thing that can transform your entire fall look in an instant. Thankfully, the Fall runways were teeming with covetable outerwear, and we're breaking down the must-have trends here. From high-fashion puffers to cozy shearlings and long wool dusters, these are the coat styles to invest in now.