The Cocoons SnapOn collection merges revolutionary clip-on design with the world renowned polarized Polare lens system to deliver instant protection from glare and damaging UV with "SnapOn" convenience. The proven performance of the Polare lens has made it the industry standard in OveRx sunwear lenses for durability and optical quality clarity. The patented "butterfly" design with variable depth bridge prongs and vertical lens adjustment for precision fitting makes them the ideal clip-on solution for almost any eyewear frame.