My daughter loves this shirt. It's really cute & is well made (I sew a little so tend to look at the seams & finish). The outer layer is a sheer silky chiffon with an attached polyester tank underneath for modesty.  I don't mind the polyester as it offers a little more warmth for cool mornings, but keep in mind that it is not 100% trivial to remove the tank if you don't like it.