600D polyester/nylon construction backpack. Top storage compression-molded optics compartment; headphone port; padded sleeve for up to 17″ laptop; lockable cable zipper pulls to secure main compartment. Mid-body flap; bottom drainage ports for wet/soiled items; interior printed lining. Adjustable padded shoulder straps with sternum strap and mobile holsters. Removable padded waist strap with pockets; compression molded back panel with airflow channels; rubberized bottom for moisture protection. Dimensions taken from official website 20″ H x 14″ W x 8″ Barley used, minimal signs of wear on the bottom but nowhere else.