This is a crocheted vest from Jocomomola. It is 100% cotton, so I think you can wear it for a long time depending on the inner layer. It has only been tried on, but it has been home laundered, so I have listed it as "near unused." It will be folded compactly and shipped via YuYu Mercari便. Flat measurements: Width: approx. 36 cm Length: approx. 46 cm (measured from the center of the back collar) Please allow for errors. Brand size: 40 Cotton: 100%