If you are between two sizes, we recommend choosing one size up. Uniquely designed to fit a wide range of body types, this bra fits your body better than ever before and continues to adjust with your body's natural changes. Material:Nylon/Elastic Fiber Functional description:Gathering,Non-marking,Breathable Style:vest-style Versatile:Everyday occasions Daily care: Machine wash in warm water with laundry bag or hand wash Do not dry clean Hang to dry