Rayban RB4105 are wayfarer shaped sunglasses made of plastic acetate material which is both lightweight and durable. The lenses are completely U.V. protecting. Rayban RB4105 are available in size 50x22. designerglasses.co.uk offers this frame in various colours including: Rayban RB4105 601/58 Black Crystal Green Polarized. designerglasses.co.uk is one of the oldest optical sites on the internet.