I wore this a few times for graduation ceremonies and the Shichi-Go-San festival. The color is navy. Please see the photos for the size. For reference, I usually wear a size M for everyday clothes. Because of the simple design, I think it can be worn by a wide range of ages. The skirt has an elastic waist and was very easy to wear. I am also selling shoes and bags, so if you purchase them as a set, I will give you a small discount!