This versatile bag comes with a detachable small pouch and its straps can be zipped together to make it a sling bag or zipped apart to make it a backpack. Lots of interior pockets and a sleek design overall. The main bag measures 13 inches high by 11 inches wide with a 3 inch depth at the bottom. It lays flat when not full. The detachable pouch measures 5 x 7”.