Width: Approximately 37cm Length: Approximately 55cm There may be some error. There are inner pockets on both sides. I don't see any significant flaws to mention, but please understand if I missed something. As shown in the last photo, there appears to be a spare button inside the fabric. I purchased this on Mercari yesterday, but unfortunately, the size doesn't fit, so I'm listing it. I will fold it up small for packaging.