Nike Men's Pro Compression Short Much more than a base layer, the Nike Pro Shorts hug you with lightweight fabric that keeps you feeling dry, cool and supported from warmups through cool downs. They’re made with at least 75% recycled polyester fibers in a stretchy design that helps you move at full intensity during your toughest workouts or competitions. Mesh at the inseam and upper seat lets air flow to help keep you cool. A double-layer, darted mesh gusset in front prioritizes breathability where you need it most. Customize with your team’s colors for a coordinated look. Body: 90% polyester/10% spandex. Mesh: 92% polyester/8% spandex. Elastic: 75% polyester/18% nylon/7% spandex.