This is a Bag by GUIDI. It is made of soft horsehide leather, and the more it is used, the more it becomes familiar. The shoulder strap is tied in one knot inside the bag, and the length can be adjusted by changing the position of the knot. The bag is unlined, and the inside is divided into two sections by a partition, allowing you to put things separately. It is a good size, not too big, and can be matched with a variety of styles.