This is a no-collar jacket and pants from GU x MIHARA YASUHIRO. (The jacket is size S, and the pants are size M. They fit perfectly on me, and I'm 170cm tall with an average build.) I bought them online because the outfit looked cute in the photos, but I haven't worn them since trying them on initially, so I'm selling them now during the seasonal wardrobe change. I don't think there will be another chance to get this set, so please consider buying them. GU x MIHARA YASUHIRO