Spring is known for confusing transitional weather that can make getting dressed feel like a challenge. What are you supposed to wear when it's close to freezing in the morning, but pleasantly warm by mid-afternoon? The answer: A lightweight jacket that keeps you warm through the initial chill (but not too hot as temperatures rise). Our favorite lightweight jackets are versatile enough to be paired with any outfit, whether you're headed to the gym, work or out for date night.