Han-juban from a Japanese clothing store (^^♪ Great value set of 2! [Gilet Juban: Shioze Han-eri & Denim Han-eri, Set of 2] Style-free, easy juban! Since the sides are not sewn, you can adjust the collar opening to your liking. You can insert your own collar core into the han-eri (collar) part. Dimensions (approx. cm) Width: 40 Length: 60 Quality Body: 100% Cotton Hanging Collar: 100% Polyester The denim han-eri is made by overlocking the fabric with a lockstitch sewing machine. It's made with reliable fabric with a label, but we cannot guarantee 100% colorfastness. Please avoid prolonged soaking or strong friction. Other than that, please handle it as you would normally.