The leading mask on the market today just got better. The new Mirage Swift II is an upgrade to a wildly successful Swift LT mask with many design improvements. The new Mirage Swift II mask is light to the touch, fits easy, works extremely quietly, and offers excellent comfort, stability and performance. ResMed has made a redesign of the Mirage Swift series of pillow masks. Changes can be seen on the headgear, pillow cushion, and overall performance. Comes in a single size with 3 different nasal pillow cushion sizes (Small, Medium, and Large).