The shape is reminiscent of ISAR, which is considered to be the representative of Côte&ciel, and is designed to fit the body. Despite its sharp side silhouette, the Riss Smooth Black combines the capacity of a backpack with the ease of a body bag, making it suitable for both casual and business use. The back has a grip that can be used in a hand style, which is also convenient when hooking. Since the device can be stored in a way that is distributed rather than the center of gravity in the central storage area, both the fit of the body back and the capacity of the messenger bag can be achieved. The adjuster belt on the side allows you to change the specifications to flat or wide. The inner pocket, which is ideal for storing keys and regular cases, is also attractive.