The Mariner II Readers are so much more than simple reading glasses with their sleek lines, extra lens shielding, adjustable nose pad and shatterproof polycarbonate frames. Typhoon Optics Mariner II with AquaView II lenses feature optical enhancement with magnification powers. The lightweight TR90 Grilamid nylon frame geometrically engineered for maximum comfort keep you happily wearing your Mariners all day. The exclusive AquaView II hydrophobic polarized lenses provide a visual shield against reflected glare while repelling water, oil and dirt providing optimal clarity. You will also be protected from harmful UV rays as these lenses block UVA and UVB rays 100%. These nearly indestructible lenses are made from injected polycarbonate for lightweight, scratch resistant strength that will last season after season. No more fumbling around looking for your reading glasses while working or playing on the water or in the sun! AquaView II Lens Technology Optical enhancement with reading magnification so you dont have to switch your glasses while in the sun Water-repellent so moisture will not streak or blur the surface of the lens Smudge-proof coating repels skin oil and lotion allowing for easy clean-up Anti-static means any natural static electrical charge that attracts dust particles is interrupted deterring dust from setting on the surface of the lens Anti-glare polarized lenses enhance visibility by reflecting sunlight differently in varying conditions 100% UV protection blocks harmful UVA and UVB rays from damaging your eyes Unbreakable, injected polycarbonate lenses provide superior strength and impact resistance Lenses are lighter than traditional plastic lenses for a more comfortable fit Polycarbonate is scratch resistant for a long-lasting wear Polarized lenses offer better visibility beneath the surface of the water Limited lifetime warranty Horizon Gray Lens Features 12% visible light transmission Optimal for bright sunny days and large bodies of water Filters out hazardous glare Softens intense light Every Typhoon Optics polarized sunglasses order is covered by a lifetime warranty against manufacturing defects and includes a microfiber drawstring pouch that doubles as a cleaning cloth.