Best Bet: A Clever Warm-Weather Sweater

Let’s face it: As the weather gets warmer, the lines blur between appropriate clothing and keeping cool. This dark-navy baseball tee happily fits in the middle, adding a sexy, feminine element to an athletic staple. Lightweight with sheer shoulders, this look can be taken from the office to an after-work rooftop happy hour.

Sheer-Sleeve Crepe Sweater, $65 at J.Crew.

Best Bet: A Clever Warm-Weather Sweater