Derby Cx3 Sun SP

NEW AND IMPROVED EnChroma Derby Cx3 Sun SP for Strong Protans is an iconic clubmaster frame with Cx3 Sun SP lens technology engineered to deliver clear, bright color and 100 UV protection for those with strong protan color blindness Features a combination of cellulose acetate and stainless steel materials with adjustable nose pads The sophisticated silhouette offers trend forward stylings for all face shapes Durability qualities inherent in the premium acetate and stainless steel spring hinges provide a more flexible fit that contours to the face over time