How to Choose the Right Size: If your waist is out of your normal size, we suggest you buy one size bigger; if you want to wear it comfortably, we suggest you buy your normal size;We are more than happy to answer any questions you may have after your purchase, please contact us for assistance, we want you to wear the right fit and provide you with 100% satisfactory after-sales service.SHAPECURVE Waist Shapewear is made of double fabrics. The inner layer is designed with mesh, it is lightweight, breathable, and sweat-wicking, which is more suitable as a workout waist shapewear for women. The outer layer is 80% nylon + 20% spandex, high-elastic fabric to allow you to stretch freely. SHAPSHE Waist Shapewear adopts a U-shaped design to make your chest straight, and 17 elastic memory steel bones surround it to enhance the support of the waist, back, and abdomen in all directions. The Double Tummy Control Effect is because it has 3 rows of adjustable hook-and-eye closures to provide you with a more suitable size. The metal zipper is beautiful and practical, and it is invisible after the zipper is closed. And the adjustable shoulder strap with shoulder pads can be adjusted according to your needs. The workmanship is exquisite, and the perfect seaming process highlights the quality.