HDE Military Tactical Assault Army Backpack Rucksack 35L Molle Bug Out Daypack Bag for Camping Hiking Trekking Hunting Sports (Army Green) MOLLE-webbed tactical backpack Expandable compartment design for increased storage Built-in compartment for hydration pack Velcro patch on back for customizable patches Side-mounted retention lanyards Overlapped zippered openings for added water resistance Interior Dimensions: 17.7&#034; x 13&#034; x 7.9&#034; Capacity: 30L / 1830 cubic inches Padded fast-release shoulder straps Exterior Material: 600D Waterproof Nylon Interior Material: 420D Waterproof Nylon