77% Nylon 23% Spandex Imported Drawstring closure √ Professional Sports Fabric: Lightweight, wrinkle resistant, stretch, comfortable to wear, breathable, skin-friendly and quick-drying high performance fabric.Let you enjoy the exercise and stay cool and dry √ Invisible Continuous Drawcord: Won't get pulled inside or lost in the wash √ Secure & Comfortable Two Layer: Workout shorts with built - in briefs, you can enjoy your sports without worries √ Convenient Storage: Featured with a mini hidden pocket in the front waistband a large hidden pocket in the back waistband √ Ventilation: Air vents on the back for airflow during your sweatiest sessions