An air bag assembly comprising: an inflator for providing a source of inflation gas, and an air bag having a first end and a second end and a first side and a second side, the air bag configured to have a first inflatable chamber proximate the first end, a second inflatable chamber proximate the second and a non-inflatable region therebetween; the air bag including an inlet communicated with the inflator, the air bag further including a plurality of joints or seams, which connect selective regions of the first and second sides together thereby controlling the inflatable volume of the air bag, a top portion of each of the plurality of joints or seams located a determinable distance from a top of the air bag to form within the air bag an integral gas flow path or channel, the inlet generally positioned spaced from a top of the air bag and generally located between the first inflatable chamber and second Inflatable chamber.