The innovative and patented Positive Facial Lock (PFL) feature utilizes the exclusive Twist-Seal technology that allows the user to create a custom fit each and every time. This unique feature significantly reduces the possibility of the user inha
The innovative and patented Positive Facial Lock (PFL) feature utilizes the exclusive Twist-Seal technology that allows the user to create a custom fit each and every time. This unique feature significantly reduces the possibility of the user inha
The innovative and patented Positive Facial Lock (PFL) feature utilizes the exclusive Twist-Seal technology that allows the user to create a custom fit each and every time. This unique feature significantly reduces the possibility of the user inha
The innovative and patented Positive Facial Lock (PFL) feature utilizes the exclusive Twist-Seal technology that allows the user to create a custom fit each and every time. This unique feature significantly reduces the possibility of the user inha