Eson 2's RollFit seal is softer, lighter and more compact than the original; but it contains increased structural support to improve fit and comfort. To accommodate a wide variety of face shapes, the RollFit Seal "rolls" back and forth on the nasal bridge seamlessly adjusting fit while you sleep to ensure a reliable, adaptable, and effective seal while providing pressure relief on the nose.
Sizing Information: Three RollFit Seal sizes are available -- Small, Medium & Large. All Eson 2 masks use a single frame size so any seal size can be used on any mask frame. If you would like to change the size of your Eson 2 mask, you can just purchase a different seal size and fit it to your existing mask frame To determine the size of your seal, check the side of the cushion for the embossed letter S, M or L.