Being ready for any situation is all about versatility. This tough as nails pack is designed to be able to maximize volume; undo the front strap and this top load roll top becomes a mule hauler, or can be compressed into a smaller carry. Outside the main compartment there are multiple quick access pockets, including a dual cargo and water bottle pocket on the side, and straps to quickly stow your sweats. FeaturesHeavy-duty, 700-denier nylon with Rain Defender® durable water repellent and coated fabric in key wear zones Large main compartment with roll top closure that can be extended for a bigger load, tension hook closure with built in bottle openerMolded back panel with channels to allow for airflow and prevent sweat buildupDedicated side access, padded 17” laptop compartmentSecure passport pocket behind back panel. Coated canvas front zippered pocket with pen sleeves, mesh pocket insideBottom straps with side release buckles for quickly stowing away outerwearDimensions: 13" X 19.5" X 8" Volume: 40L2 Rows of M. O.L. L.E Straps on each side of bag for accessory attachmentsCountry of Origin Carhartt Men's 40L Nylon Roll-Top Backpack Black