Yukata is a Japanese summer robe. People wearing yukata are a common sight at fireworks displays, bon odori festivals and other summer events. The yukata is a casual form of kimono that is also frequently worn after bathing at traditional Japanese inns. Though their use is not limited to after bath wear, yukata literally means "bath clothes". Like other forms of clothing based on traditional Japanese garments, it is made with straight seams and wide sleeves. Unlike formal kimono, yukata are typically made of cotton rather than silk. Traditionally yukata were mostly made of indigo-dyed cotton but today a wide variety of colors and designs are available. Like the more formal kimono, the general rule is the younger the person, the brighter the color and bolder the pattern.