Willarde Women's Compression Leggings Base Layer Tights Long Pants 78%Polyester, 22%Spandex Moisture Sensing/Quick time Dry/2-Way Air Circulation Compression Fit Bolsters Muscle Support and Increases Circulation Performance Fabric Is Lightweight and Comfortable and Wicks Sweat Protect Your Skin From UVA/UVB Radiation During Your Outdoor Workout Great for Yoga, Fitness, Training, Running, and All Weather Sports and Activities The fabric is made of 86% polyesterand 14% spandex, which is close-knit, elastic, smooth , comfortable and of wearability.<br> Quick-dry: The fabric gets dry much faster than general fabric for the special elasticity and structure, which fits body closely. <p></p> Sweat-wicking: We apply with special design and technique to produce micro-groove fiber and unique fabrics . It wicks sweat from the skin to the fabric exterior promptly, which wicks faster than general fabric for 5 times .