The time has come when layering is absolutely crucial. You’re cold in the morning, warm at work and freezing at night. So what’s a fashion girl to do? Fortunately, there’s a foolproof way to solve this annoying problem. Enter the sleeveless knit: It’s extra cozy for those days when you can’t escape chilly temperatures, but still allows ventilation thanks to its no-sleeve feature—in case you happen to overheat. And with an array of options on the market, consider it that one fall staple you won’t have to break the bank to afford. Click through for 3 affordable options and how to style them during confusing weather conditions.