Fisher Paykel FlexiFit 432 Full Face CPAP Mask with Headgear combines a soft foam cushion with an advanced contoured silicone to ensure optimal seal and fit. Fisher and Paykel's revolutionary "under chin" technology allows for better fit, especially to hold up user's jaw and sealing over beards. This mask is identical to FlexiFit 431 full face mask, but also includes a foam cushion as well as a silicone cushion. The foam cushion allows for a more precise, air-tight seal. Comes in 4 different sizes: Small, Medium, Large, or X-Large.