浴衣

プログレッシブ和英中辞典(第4版)

ゆかた【浴衣】

a yukata; an unlined cotton kimono (for loungewear or sleepwear)

説明
A yukata is a casual cotton kimono for summer. The traditional colors are indigo and white, although recently more colorful yukata have become popular. Some people put on a yukata after having a bath and use it much like a bathrobe. It is also common to see people wearing yukata when they go out to enjoy summer festivals or public firework displays.（意訳：木綿で作った夏用の着物．色は紺と白が主流だが，最近ではカラフルな浴衣が見られるようになった．入浴後に着たり，夏祭りや花火見物などによく着られる）

浴衣がけで散歩に行った
He went for a walk in his 「informal summer kimono [yukata].

浴衣地

cotton cloth for a summer kimono

出典　小学館「プログレッシブ和英中辞典(第4版)」