This travel piece is made of ballistic nylon and features a trolley strap for fitting over luggage and an Add-A-Bag Strap for attaching another travel item. It has a double-zip entry to the main compartment, an exterior open pocket, and exterior shoulder straps. A removable zip pouch with snaps can attach to the bag's interior. The approximate size is 14" W X 23" H X 9.0" D and it is available in black.