Two piece reflective bikini is made of high-quality spandex fabric. Peekaboo Halter top ties behind the back and neck for great comfort and fit. Top and thong are adorned with chain detailing. This that glows the colors of the rainbow when light hits it. Extra small is a A cup small is a B cup medium is a C cup large is a D cup extra large is a DD cup and two XL is a DDD cup.