Navy sunglasses completely hand made to create a perfect fit and luxury finish, crafted in rich heritage natural cellulose plastics for a superb quality silky hand feel. Lenses provide Maximum UVA and UVB protection and are Optical Class 1 for perfect visual clarity with Dark Tint Filter Category 3 (FC3). I've always loved making sunglasses. It's such an artisanal, labour intensive thing. Getting the silky finish on my sunglasses is by no means easy. Getting the optics just right is a skill. You put all this together in a package that just exudes quality and class. Very satisfying.