Vuarnet 006 Sunglasses Mineral lens provides perfect optical quality with zero distortion and a high level of transparency Very resistant to scratches, shock and abrasion Anti-glare, hydrophobic and oleophobic coatings Silver Bi-shaded Mirror eliminates glare and reflections to provide not only optimal sun protection but enhanced comfort too. Polarizing film eliminates light reflection to give you a high resolution vision. Blocks out 99,9% of polarized light glare This is particularly important when youre out on the water or in the mountains where reflections from the water or snow surfaces can be particularly irritating.