【Gilet Semi-襦袢 Denim Fabric with Collar】 A stylish and easy semi-襦袢☆ The sides are not sewn closed, so you can adjust the collar opening to suit the occasion. The body is made of bleached cotton 100%. The collar has firm stitching and can be washed at home. Using a laundry net will help it last longer. Features an adjustable collar puller with two settings. You can also insert your own collar stiffener. The denim collar is made from denim fabric and is designed to look like a collar.