Lightning 30 Frame Backpack mesh Imported Buckle closure 7" high 12" wide 30 liter top load main compartment with gusseted drawstring closure and adjustable top lid Internal hydration reservoir sleeve and dual exit ports for tube (reservoir not included) Removable media pocket, adjustable sternum strap, webbing daisy chain to attach extra gear and rain cover stored in bottom to protect pack for air travel Contoured backpack straps, with adjustable load-lifters and VAPEL mesh padding, are uniquely shaped to fit trimmer torso 23x12x7 inches (58.4x30.5x17.8cm) 30 liters 1830 cubic inches