NASA © travel backpack. Main compartment with zip closure. Interior mesh zip compartments. Front zip compartment. Four adjustable side straps to adjust the size. Two front zip pockets. Four adjustable sporty straps on the sides to adjust the size and a zip pocket. Handle and double adjustable shoulder straps. Back strap to secure to rolling luggage. - Rolling luggage and suitcases not included. Height x Length x Width: 16.5 x 9.8 x 6.7 inches (42 x 25 x 17 cm)