Exterior material: Polyester, nylon.Lining: Nylon, spandex.Women's running workout shorts in a soft, quick-drying, comfortable and breathable fabric.Color: blue, dark gray, pink, blackFeatures1. Add small pockets on the side for cell phones, tissues, keys, etc. It is convenient for fitness travel2. Great for everyday activities, gym, jogging, exploring, group fitness classes, running and biking, hiking, HIIT workouts, travel, cycling, Pilates, and even casual wear.3. Curved butt lift line, lead visual focus to shape sexy buttocks4.It has a nice thick high waistband with side slits leaving lots of room for hips