The Nasal Pillows for Swift FX CPAP Mask are a single pair of nasal pillows for the Swift FX in selected size. Choose desired size nasal pillows when ordering. The Swift FX nasal pillows are designed with dual-wall flaps with improved support and comfort. The cushion's base is outfitted with an integrated flexible chamber that provides stability for side sleepers. This added flexibility accommodates movement and a reliable seal at high therapy pressures.