One size fits almost every body. Soft & Stretchy, it Comfortably fits sizes 32A to 36D. No kidding – they really do fit that size range perfectly! They are all seamless, so no hooks or clasps. The back is smooth. Straps are wider, adjustable, & removable and each has removable, reversible improved more natural padding. The pads are extremely soft and stay in place with the versatile pocket that can be used to hold prosthetics in place of the pads. The fabric is made of an ultra soft nylon and spandex blend. Perfect for everyday wear, work, the gym, yoga, and so much more!