It's okay if you don't yet consider vests a fall staple. We're about to show you three reasons to rethink your stance. Not only are they great ways to mix up the basic sweaters and button-ups that are easy to get sick of in the colder months, but they also polish any outfit, instantly. There's the suit vest, the sweater vest, and the boxy vest — all ready to make your wardrobe go that extra mile. We'd make a joke about being invested in these pieces, but, really, it's no laughing matter.