Athleta Mesh Racer Run Short 4” Size XS The Athleta Mesh Racer Run Short 4” is a pair of women's shorts that are designed for long distance, short distance, and trail running. They are water-repellent, ventilated, and have plenty of room to move. They are made with a recycled Featherweight Stretch™ fabric that is silky and light. They also have a no-slip waistband that stays put during workouts.