The messenger bag is made of 100% nylon. It has a flap closed with a magnet. The bag has one compartment closed with a zipper, in which there are two open pockets and one closed with a zipper. There are additional pockets on the sides and at the back. The bag has a detachable, adjustable strap. In addition, the postman bag has protective feet. Be sure to check out our entire collection of BIG STAR handbags and backpacks. Dimensions: Width - 27 cm Height - 20 cm Thickness - 10 cm