DIRTY DOG POLYCARBONATE & POLARIZED POLYFILTER LENSESDirty Dog&8217;s are equipped with the latest lens technology in POLARIZED POLYFILTER & POLYCARBONATE lenses. POLYCARBONATE is the most impact resistant optical material available guaranteeing the wearer protection from physical objects as well as visual comfort. Scientifically formulated to offer exceptional defence against the suns harmful rays our POLARIZED POLYFILTER & POLYCARBONATE lenses absorb radiation that can be damaging to the human eye. These lenses provide clear & restful vision in the most extreme environmental conditions. Dirty Dog sunglasses Polarized lenses also block 100% of reflected horizontal glare making them the perfect choice for any high glare situations like fishing boating skiing driving or any situation where you need extra protection from reflected glare. Dirty Dog sunglass lenses consist of layer upon layer of advanced technology bonded together to maximise UV protection & enhance the clarity of your vision for safe & durable wearing. The lenses contain 4 UV filters for optimum UV blockage. All Dirty Dog lenses are treated with two specially developed hard coatings to make the lenses extremely scratch resistant & prevent the deterioration of lens clarity.