The Fisher and Paykel Eson2 Nasal CPAP Mask provides the customer with the ability of a perfect fit like no other Nasal CPAP Mask in the industry. The Eson2 CPAP Mask Cushion has the RollFit technology designed by Fisher and Paykel. The RollFit Technology allows the Mask Cushion to roll back and forth on the bridge of the nose which automatically seals to your face based upon the facial structure and tightness of the headgear straps. The Eson2 CPAP Mask Cushion RollFit Technology reduces the pressure on the bridge of the nose where most CPAP Masks cause irritation and soreness on the bridge. The rolling back and forth maximises your comfort while keeping the prefect seal of your mask while treating your Sleep Apnea.