A4 files fit easily! Approximately 30cm (H) x 35cm (W) x 12cm (D) (slight variations may occur). Please refer to the photos with a 500ml plastic bottle for size reference. Made of synthetic leather, so you can use it with peace of mind even on rainy days. It can be used in 4 ways (backpack, shoulder bag, crossbody, handbag) using the included shoulder strap. Lots of pockets! The largest opening has a zipper for security. Comes with a small pouch! Stored at home [no pets, no smokers]. If you are not overly concerned about details, please consider purchasing. Shipping costs can be reduced and combined with other orders! Please check out my other items! Backpack 4way Job Hunting Business Black Synthetic Leather https://jp.mercari.com/item/m58432401606 Backpack 4way Messenger SAZABY https://jp.mercari.com/item/m84937665194 No stains or tears. Accessories: Shoulder strap, pouch Color: Black