A pad assembly for use with a gas delivery mask for delivering a flow of gas to an airway of a patient is described. The pad assembly includes an outer casing and a support element. The outer cashing has a housing portion and a mounting portion. The housing portion has a first wall and a second wall defining a hollow cavity therebetween. The first wall is structured to engage a portion of the patient, and the mounting portion is structured to couple the outer casing to the patient interface device. The support element is disposed substantially within the cavity of the outer casing.
