89% Polyester, 11% Spandex Elastic closure Comfortable Wrinkle-Resistant Fabric - 89% Polyester + 11% Spandex, quick-drying and skin-friendly, sweat-wicking and breathable, nude skin-friendly, stretchy and comfortable, can be used for regular all-match. Using textured material, the fabric is stretchy and textured, breathable and comfortable, allowing you to move on keep dry. It does not fade or deform after washing, and it is a sports bra/crop top that is comfortable enough to be worn every day. Light/Medium Support - Wide hem and built-in bra add extra support without being tight. Built-in padds provide firm support, fit and don't shift easily, which can wrap a variety of bust shapes. Vest Design & U-Shaped Back - The wireless vest-style design with a simple neckline can beautify the bust line. And the unique U-shaped back cutout design can release the shoulder blades and reduce the coverage of the back. It can also modify the shoulder and neck lines, and relieve pressure. Elastic Wide Bottom Belt - The bottom belt is wider, thicker and more elastic, it is not easy to curl, providing support and stabilizes the bust, so as to shape your body. Keep everything in place while exercising, no need to readjust through exercise. The raised side girth provides your body with a side-reduction function, which can easily wrap the auxiliary breasts, which is very suitable for yoga, Pilates, jogging, and light exercise. Widened Shoulder Straps - The one-piece wide shoulder strap is very comfortable and does not press the shoulders. At the same time, the widened shoulder straps are not easy to slip off, which can reduce the shock during exercise, strengthen the tension of the shoulder straps evenly, and prevent the shoulder straps from pulling and sagging breasts. And it is very comfortable to wear.