We built the Slam tennis shorts using insights from our athletes to optimize your on-court performance. They're built to let you move effortlessly from baseline to net with a relaxed fit and lightweight, stretchy fabric. We chose a fit—not too baggy, not too tight—that helps you focus on honing your skills. Smash on Sweat:Nike Dri-FIT technology moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable. Built to Play:Smooth woven fabric stretches in all directions so you can get the most out of your movement on the court. Body-hugging inner shorts provide extra support. Made for Tennis:Innovative pocket helps keep tennis balls from falling out during play. Product Details:Side pockets. Body: 86% polyester/14% spandex. Tight: 93% polyester/7% spandex. Machine wash.