The sienna bikini is my current go to and I think it will be this way for a while! The top is an underwire hold with a double secured clasp to make sure you are secured all day long. The bottoms are your classic tie and provide minimal to full coverage depending on your preference. This set never fails to make me feel confident yet comfy in what I am wearing! I definitely recommend this for everyone. Available in two color ways! 90% Polyamide 10% Spandex UV Protected ECO Friendly Model is wearing a size small and is 5'6", 140 lbs and a B cup. Fits true to size.