STUDIOUS Dark blue jacket. Made of polyester material for a comfortable fit. Also, the hem can be adjusted with a string, so you can wear it in a casual and natural style, or in a neat style. - Color: Dark blue - Design: Button shirt jacket - Material: Polyester main - Collar style: Shirt collar - size1 (M) Purchased at an exhibition before, but I haven't had a chance to wear it, and it has been stored in the closet. There are some storage wrinkles.