This is a Steven Alan jacket. It's a double-breasted design that can be worn casually. I think it would look great paired with a shirt and sneakers. I'm selling it because it no longer fits me. It comes with the product tag. Product Name: DUCK 4B DOUBLE BREASTED JACKET-NARROW / Jacket SA DUCK 4BW NRW JK Product Number: 8122-174-0077-2330 Purchase Price: ¥28,600 Size: S Shoulder Width: 44cm, Sleeve Length: 58cm, Body Width: 52cm, Length: 72cm Material: Outer fabric: 100% cotton, Lining: 50% cotton, 50% cupra [Item Description] A single-layer jacket made from tightly woven duck fabric. It features classic details with pull tabs. It has a clean silhouette with a moderate amount of room, making it suitable for a modern look. It's lightweight and perfect as a spring outerwear. It can be worn casually over a T-shirt for a sophisticated look. [Brand Introduction] American classic and casual wear made with high-quality, comfortable materials. They add subtle details and a playful touch, such as the Reverse Seam shirts, which have the seams and pockets turned inside out, and the Single Needle shirts, which feature button-down collar details. The women's line is very popular for its Boyfriend shirts with a relaxed silhouette. They are particular about a clean silhouette even while being casual, and they are finished with a washing process that pursues the feel of the finished product.