"95%Polyester, 5%Spandex.Breathable & Soft Fabric: Lightweight and breathable soft material wicks away sweat to keep you cool and comfortable when you exercise. Back zip pocket & internal waistband pockets could stash the essentials.The fabric is a soft and ultralight like feather,quick-drying, soft to touch and highly durable.Phone Pocket: The built-in liner with an elastic phone pocket on the right can hold the plus phone properly, free your hands when you workout.Double Layer Design: Inner layer provide elastic support and protective coverage; the Outer layer side split design offer breathability and a wider range of motion.Shorts great for intense gym workout, weight-lifting, cardio, running or just walking.[NOTE] Pleasecheck the size chart to select the appropriate size."