NcSTAR Patch, Backpack, 18x14x3 Main Compartment with Hydration Compartment, Green, Large Secondary Compartment, Small Side Zip Pocket, Small Draw Cord Side Pouch, 17x11 Soft Loop Surface for Hook Backed Patches CBPB3052U The VISM Patch Backpack features 2 large pouches and 2 small pouches that will carry your essential gear" and the soft loop panels covering the exterior allow it to be done with a large degree of customization.