Aqua sphere michael phelps rio open back swimsuit ladies the aqua sphere michael phelps rio open back swimsuit is ideal for any lady wanting a stylish comfortable fitting swimsuit for when hitting the beach or swimming baths the swimsuit features an all over print design for an eye catching look swimsuit ladies open back all over print design high chlorine resistance uv protection upf 50 optimum breathability quick drying 47 polyester pbt 53 polyeste