describe:90% polyester and 10% spandex blend1. Please check the size chart attached at the end of the picture group. If your size is between two sizes, we strongly recommend customers to choose a size up.2. Ultra-light, moisture-wicking polyester/spandex fabric. Super comfortable and breathable, it enhances body movement and "wears like a feather".3. Stylish side bottom scallops custom for unrivaled body movement; Mesh lining keeps you safe; Perfect for squats, running, gym workouts, cardio, WOD. A design that makes the wearer stand out.4. There is a zipper pocket on the back of the belt, which is convenient for storing various mobile phones.5. We provide high quality products at the best price. We have been designing and manufacturing high quality activewear for many years. Promise to trade with peace of mind.