I used this bag for my daily commute. It has a great capacity, is stylish, and very easy to use. It shows signs of use, but the zippers are in good working order and it's still perfectly usable. Thank you. [Product Name/Brand Name] PORTER Porter Yoshida Kaban [Product Features] This is the "PORTER TIME" business series, with a simple design that suits various business styles. It uses a lightweight and highly durable original fabric and offers a wide variety of items with features essential for business bags. The main material is Porter's original CORDURA nylon twill fabric, which is lightweight and highly durable. The fabric surface is treated with Teflon fabric processing for high water repellency and stain resistance, and the back is PVC-coated, making it a functional fabric that combines strength, lightness, and water resistance, preventing water droplets from seeping into the interior. All models have a self-supporting structure, and the interior is equipped with gusseted pockets for storing PET bottles and folding umbrellas. In addition, business bags are equipped with pockets for storing laptops and tablet devices, which are essential. *A4 size, 13-inch PC compatible [Size] W: 285mm / H: 410mm / D: 110mm Weight: 780g Capacity: 12L [Material] Surface: CORDURA nylon twill (Teflon fabric protector processing, PVC processing) Lining: Nylon ox (Teflon fabric protector processing)