Of course, it's actually called a yukata, and it's for wearing on summer evenings or hot days.
And of course, it's actually Marc by Marc Jacobs, the bridge line, but still. It is the only authentic Marc Jacobs logo kimono on the market right now. Women's sizes only, I'm afraid.
Marc Jacobs yukata, 48,300 yen [marcjacobs.jp via jeansnow]