My mother bought this at Keio for 2100 yen some time ago and kept it unused. I think you can wear it over a tank top or other innerwear. ● Flat Lay Measurements Width: Approximately 49cm Length: Approximately 50cm Shoulder Width: Approximately 52cm *Please note that the paper bag and box it came in at the time of purchase are not included. *Please consider purchasing with the understanding that this item has been inspected by a non-professional and stored at home. Thank you very much. Color: Black Sleeve Length: Sleeveless