MUJI Bag-in-Bag Nylon Mesh Material Gray One size, about half the size of A4. I tried putting various items in it, but I couldn't get used to it and it's been in storage. There are no pockets on the outside. The inside is divided into four sections. There is a fold in the inner label, so I have selected "Slightly damaged or dirty" just in case, but it is in a condition that you can use comfortably. It will be shipped by regular mail from the post office.