Serengeti Flex Polar PhD Sunglasses feature lens technology that is simply the best of the best standards of Serengeti sunglasses, combined with the astounding comfort of lightweight Flex Series frames. Polar PhD lenses provide 100% UV protection, block distracting blue light, eliminating "blue blur" that leads to eye strain and fatigue, and are designed to withstand the harshest environmental conditions. Serengeti Flex frames are so light that you won't even feel them, and with Polar PhD lens technology you are treated to the latest in polarization and photochromic lens technologies with Serengeti 's proprietary Spectral Control technology.
Serengeti Polar PhD Flex Sunglasses feature a polarization layer engineered into the back of the lens, which eliminates the usual delaminating that is inherent with traditional film-based polarization technology. Serengeti Polar PhD have image quality that is second to none thanks to Serengeti Spectral Control technology, providing unbelievable contrast and superior color enhancement by filtering out specific colors within the visible light spectrum resulting in crisper color and unrivaled clarity.
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Serengeti Polar PhD Flex products are designed to withstand the harshest environmental conditions, provide protection from UV radiation and high velocity impact without compromising visual performance. Serengeti Sunglasses Flex Polar PhD lenses boast an anti-scratch hard coat, seven layer backside anti-reflective coating and oleo phobic coating technology for oil and water resistance.