SnugPak Rocketpak Backpack Nylon Main compartment: 2,440 cubic inches / 40 liters Side pockets(each): 915 cubic inches / 15 liters Total volume: 4,270 cubic inches / 70 liters Only weights 70 oz Dimensions: main (17"H x 12"W x 8"D) - side pocket (14"H x 7"W x 5"D) Pockets: 1 interior slip, 2 interior zip, 2 exterior