Capacity - 100 oz (3 L) Cargo - 2592 CU IN (42.47 L) An updated Air Director Back Panel, 500D Cordura and reinforced webbing give the Motherlode the needed durability and functionality needed in the field. 35% lighter weight 500D Cordura Air Director Back Panel for better load distribution and ventilation. Zipper back panel access make loading and unloading reservoir easy. Fleece-lined glasses, goggles, and NVG pocket with external access.