Explorer travel backpack. Main compartment with zipper closure. Inside there are two mesh compartments with zipper closure on one side, and on the other side, X-shaped elastics with clip closure. On the front there is a compartment with zipper closure and another open mesh pocket. It has two handles, and double adjustable shoulder straps. It has a back strap to improve attachment to the trolley. Height x Length x Width: 16.5 x 11.8 x 4.7 inches (42 x 30 x 12 cm)