This is merchandise from a no-audience live performance held in the summer of 2021 due to the COVID-19 pandemic. Fortunately, merchandise sales were available at the time, so I purchased and displayed these items. Size: L Flat measurements: Width: 48.5 cm Length: 63 cm Please note that these are amateur measurements, so there may be some slight variations. After purchase, I opened the bag and looked at the items. I am reluctantly selling these to organize my collection. I can also offer a set sale with a big-size T-shirt, so please comment if interested.