Is it me, or are all the fashion girls on Instagram suddenly tennis players? Or, at least, very much into a tennis aesthetic? The core component of this look is surely a classic pleated tennis skirt. If you're interested in trying the trend, definitely start there. Then, layer up your outfit with some white tennis shoes, tube socks, and a sweater draped over your shoulders for good measure. A polo shirt or a cropped tank are optional, and in case you're looking to hit all the aesthetic cues of the trend, we made a handy checklist below. Scroll down to see how fashion girls (and a few professional tennis players for some authentic inspo) are styling the preppy summer look.