This is a 13-inch PC case from Briefing, purchased at NewMan in Shinjuku Lumine. Used a few times. There are no noticeable stains. Please only purchase if you understand that this is a used item. The following is a product description from the official website: The collection, which covers everything from business and business trips to casual scenes, has been significantly renewed with the concept of "smart storage." The collection has been updated in both functionality and design, including the various storage pockets and design revisions that are characteristic of the collection, and the use of completely original materials. 【Specs】 Interior: Pocket (large) x 2 (with cushioning material, compatible with PCs up to 13 inches) Exterior: Front: Zip pocket (large) x 1 (with removable key ring inside, can store B5 size) Zip pocket (medium) x 1 (with pocket (small) x 2 inside) 【Recommended Points】 -Completely original material created from raw fabric- ・Mainly uses an original material that uses recycled nylon yarn for the warp and hollow yarn for the weft. It is lightweight yet has a firm texture. The grid pattern found in ripstop nylon is not noticeable, making it a great match for an elegant business style. 【MODULEWARE COLLECTION】 A collection that covers everything from items needed for business and business trips to casual scenes with the concept of "smart storage." It is equipped with many pockets and dividers that allow you to smoothly store small items such as gadgets.