Just like its big sister FALCO, the VULTURE is another example of Bollé's expertise in lens and frame technology. With a medium fit, this flat-top style is made for an active lifestyle. LENS - HD POLARIZED OFFSHORE BLUE Cat. 3Tint base : GreyTransmission : 12% Bollé PC lenses are tuned for marine sports with 100% UV protection, a polarizing filter to stop disturbing glare and a blue hue to enhance contrast on water.  100% UV protection  Lightweight  Polarized  Visibility  Protection