1.Please Carefully Refer To Seller Detail Size Chart Shows in the Left Pictures, and Choose a Larger One If Yours Between Two Size Chart. 2.Material: Polyester. 3 Hook-And-Eye Closures is Adjustable For Flexible Sizing. 3.Enhanced Design: The Front Chest is Thicker, Protect Your Privacy, and The Back Take Double Mesh Design, More Breathable and Comfortable. 4.Make Chest Flat And Become Cool. Designed For Transgender, Lesbians, Tomboys, Or Stage Show Supply. 5.Slim-And-Fit Style, The Actual Size is Tighter Than The Standard Size. Please Choose One Size Larger. Make Chest Flat And Become Cool. Designed For Transgender, Lesbians, Tomboys, Or Stage Show Supply.