The product is made using double shoulder leather from Japan, a material that has been used by the brand for a long time and has established its identity. It then undergoes a product dyeing process. We use double shoulder leather sourced from the larger shoulder sections, which are often characterized by thick, robust texture and prominent tiger wrinkles. The unique ruggedness of the leather is enhanced by the product dyeing, further emphasizing its raw aesthetic. Initially, the material has a matte and stiff texture, but with continued use, it gains flexibility and the oils rise to the surface, transforming it into a supple texture with a subtle luster, developing its own unique character. This small-to-medium-sized shoulder bag is constructed with thick shoulder leather for robustness, and its shape is designed to maximize the inherent stiffness of the product after the dyeing process. Both the large and small storage compartments have ample gussets, providing more storage capacity than their appearance suggests. As the bag becomes accustomed to use, its stiff texture will gradually soften, and the bag itself will settle into a well-proportioned form without losing its shape. The design strikes a fine balance between luxury and casualness, with a functional structure that resembles two docked zip pouches of different sizes. This makes it a unisex bag capable of smartly storing personal belongings. The shoulder strap, made from the same processed shoulder leather as the bag body and easily detachable with a snap hook, is 3cm wide for stable carrying. The buckle on the strap is a single-pin roller type, allowing for easy length adjustment. The main compartment of the bag has one internal pocket and is lined. While directly expressing the character and design derived from the leather and processing, the bag is finished with a simple design that considers everyday usability.