Rustpot is right, i was referring to the frame.The fin on the lens correct? Just to provide the most wrap and coverage possible. If it actually connected up to the frame at the furthest point it would not only look weird but make the hinge inoperable. Oakley is big on their sport glasses giving a great fit as well as a great wrap to provide the most coverage possible for sports. It not only has function but ads a bit of modern styling to it as well.