This black Voodoo Tactical roll up dump bag is made of rugged pack cloth to retain whatever you need to throw into it as a quick stash. It's good for spend mags, shells, rounds, trash, or whatever you may find while out and about and don't want in your pockets. It has 2 long straps that will fit easily onto a belt or MOLLE strap system for added convenience. The inner bag has a zip string to keep contents from coming out, but it also has 2 grommets for drainage for wet items. whenever it isn't in use, you can simply roll the drop back up, and use the side clip to keep it held up in place.