Wenger IBEX Technical 3500 Cubic Inch Internal Frame Pack (Grey/Black) Wenger's exclusive DoubleShot bite valve supplies an extremely high flow rate giving the user a healthy dose of H20 Fully adjustable suspension system providing unparalleled load carrying comfort Breathable padded back panel with curved shoulder straps give you additional comfort and portability Packbag is easily accessed through the top lid or lower compartment.. WG244031. 26 inches x 12 inches x 9 inches. 3542 cubic inch capacity Limited Lifetime Warranty