Caribee Deep Blue Daypack Action Back Padded Harness System w/Air Mesh Padded & Adjustable Shoulder Straps for Added Comfort Extra Back Padding & Sternum Strap for Equal Weight Distribution Side Mesh Utility/Bottle Pockets w/Internal Organizer Panels & Stash Pocket Large Main Full Zippered Compartment; Carrying Capacity: 30 Liters/1,512 Cubic Inches Durable 600 Denier Polyester Construction