The Fat Boy photochromic
sunglasses feature transitional lens technology. This photochromic technology is
caused by molecular reactions to UV light that allows the lenses to darken
reducing the amount of light reaching the eyes. The lens transmission allows
87%of light through indoors & allows 47% of light through outdoors. Featuring
anti-fog, polycarbonate lenses. Increased comfort & protection with closed-cell
memory foam around the eyes. The microfiber storage sleeve can be used for lens
cleaning.