Up until the fifteenth century the vast majority of kimono worn by most people were made of hemp or linen, and they were made with multiple layers of materials. Today, kimono can be made of silk, silk brocade, silk crepes (such as ) and satin weaves (such as ). Modern kimono that are made with less-expensive easy-care fabrics such as rayon, cotton sateen, cotton, polyester and other synthetic fibers, are more widely worn today in Japan. However, silk is still considered the ideal fabric for more formal kimono.