This is a magical bikini swim suit. It is gray during the day. When you use light to illuminate it in dark places, it will reflect the light. It is made of a special reflective material, it is very soft and flexible, breathable fabrics, comfortable to wear. Great for parties, if you wear it, you are the most attractive girl in the audience. Please do not machine wash, please use warm water hand wash! When you order it before, please be carefully check the size info at seventh image.