There is no material tag. It's a soft, thin fabric. Because there is no material tag and it shows some wear, I've listed it as "Slightly damaged or with stains," but there are no noticeable stains. Although it's labeled as size M, please check the actual measurements. Length: Approximately 71.5cm Width (armpit to armpit): Approximately 54cm Sleeve length: Approximately 22cm Since there is no material tag, the brand name and manufacturer are unknown, but the tie-dye-like fabric with bright, bingata-like patterns is very lovely. - Sleeve length: Short sleeve - Pockets: One chest pocket Thank you for looking.