YOHJIYAMAMOTO mesh balloon knit cap。Ground Y × NEW ERA® AW22-23 Collection | Yohji Yamamoto。7j273h1t1vidjkodkfzumk6h4iuf92。Y's x New Era AW22 COLLECTION | Yohji Yamamoto Official Site。This is a balloon knit cap by Yohji Yamamoto. It is designed to gather at the back of the head, and has glitter in it, so it sparkles when you look at it from an angle.