For a few months of fall, there will be this weird weather pattern happening that will at any given moment make you feel hot, then cold, then hot again. Annoying, right? But when the weather plays these mind games, what do you wear to stay relatively warm and cool? The sleeveless jacket. Like, it was supposed to be a jacket, but then, nope. They may sound weird, but they will come in handy. Just remember to add layers when it gets cooler (and definitely don’t drag this into winter).