This is a storage bag that can be easily compressed with a zipper. Approximate size when empty: Width: 22cm Height: 34cm Thickness: 4cm I bought it on Amazon for about 4000 yen, used it once, and then stored it. I'm selling it because I don't have a use for it. Please note that it will be simply packaged. Made in China, perhaps? The zipper feels a bit stiff. Unlike regular compression bags, it doesn't require a vacuum cleaner for compression. The function is super easy: just close the zipper for compression. It looks like a small compression bag, but it can actually hold a lot of clothes. It's a great storage bag for travel, business trips, and overnight stays in hotels.