This is a horse leather bag made of a standard material. The horse leather used in this bag is made of densely interwoven fibers, making it thin but strong. The waxed finish gives the bag an elegant and sophisticated quality. In order to incorporate maximum functionality as a "tool" without compromising the simplicity of the design, for example, the opening and closing of the bag is stress-free, the pockets are located in easy-to-use positions, and the zippers are concealed to avoid the metal from rubbing against the body.It can hold up to A4 size documents. For everyday care, simply wipe it gently with a dry cloth once in a while, but we recommend applying a waterproof spray periodically. Some leather care products have compatibility issues, so please apply a test coat on an inconspicuous area such as the bottom before use.