Inflatable Double Layer Pillow Excellent neck support design keeps neck in position while resting on a plan or in a car. Dual-chamber pillow allows individualized cushioning of head and neck for maximum relaxation in planes, trains and cars Each section inflates independently for customized fit, firmness and support Inflatable with easy to use valves, effortless to inflate and deflate. Personally tested on various cross-Atlantic flights, unmatched in it's class!