Side curtain airbag

An inflatable cushion for a side of a vehicle is provided, the inflatable cushion, having at least one inflatable cell proximate to an end of an inflatable portion of the inflatable cushion, the least one inflatable cell being defined by a first layer of cushion fabric secured to a second layer of cushion fabric; a single sheet of fabric secured to either the first layer or second layer of cushion fabric defining the at least one inflatable cell, the single sheet of fabric defining a non-inflatable portion of the inflatable cushion and wherein a substantial portion of the single sheet of fabric traverses the at least one inflatable cell and is tangent to a face of the at least one inflatable cell when it is inflated such that upon inflation of the at least one inflatable cell tension is created in the single sheet of fabric.