This item uses a blend of polyester and cotton to create a high-quality weave, similar to those typically found in suits made of wool, giving it a sophisticated look. It offers a refreshing feel while maintaining a polished impression, making it suitable for both casual and work settings. I primarily wore it for work, but I'm selling it because I no longer need jackets due to a job change. It has been dry cleaned and stored in a closet with a cover. It can be hand-washed or machine-washed on a delicate cycle at home, making it a very convenient item to have. Made in Japan. It's in excellent condition with no stains, tears, or frays, so please consider it if you're interested. Sleeve Length: 61cm Shoulder Width: 41cm Width: 45cm (buttoned) Length: 70cm ＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊ Lining: None Stretch: Slightly Sheen: Yes Thickness: Thin Fit: Slim and streamlined. Material: Cool and refreshing. Comfort: Lightweight and fits the body well. ＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊ To minimize shipping costs, I will fold the item compactly for packaging. Please be aware that this may cause some creases. Thank you for your understanding. Please feel free to ask any questions you may have. Season: Spring, Summer, Autumn