【SIZE CHART】Please refer to the correct SIZE CHART we provided instead of Amazon Size Chart. If the size is between two sizes, the shape effect of the small size is stronger, but it feels tighter when it is first worn, and the larger size is relatively comfortable to wear. 【PREMIUM MATERIAL】Our waist shaper is made of quality Nylon/Spandex soft fabricr. It's also can be worn under everyday clothes,which keeps you comfortable while you are shaping. 【MULTIFUNCTIONAL WAIST TRAINER】With four pieces built-in steel bones to help you in in good posture. 【FOR ANY OCCASION】Widely used in body-building exercises, such as exercising, running, yoga, or going out, but also Ideal for every day inside colthing. 【SATISFIED SERVICE】Youloveit is committed to developing better comfortable and functional shapers, provide quality services and excellent products. If you have any question, please feel free to contact us first.