Yukata (浴衣) are casual cotton summer kimono. Yukata were originally very simple indigo and white cotton kimono, little more than a bathrobe worn within the house or maybe for a local stroll e.g. to the bathhouse. However, from roughly the mid-1980s onwards, they began to be produced in a wide variety of bright colours, large motifs and loud patterns, responding to a demand for a more casual modern kimono that could be worn to a summer festival.

In the present day, yukata are worn with hanhaba (half-width) or heko obi, and for women, often accessorised with colour hair accessories. Yukata are always unlined, and it is possible to dress up a high-end, more subdued yukata with a relatively casual nagoya obi - one with a simple dyed design in an informal fabric such as ro or tsumugi. - Wikipedia, 13/5/2020