Brando Progressive Rx Shades. Specifications for Serengeti Brando Prescription Aviator Sun Glasses: ... Serengeti Brando Progressive Prescription Sunglasses bring sleek design and state of the art ... Prescription Lens Type: Progressive Features of Serengeti Brando Progressive Photochromic Rx ... Package Contents: Serengeti Brando Progressive Prescription Sunglasses ... features to the classic Aviator. The face-conforming Wire-Flex frame of the Serengeti prescription ... sunglasses is highly durable because of its flexibility, allowing you to bring the Brando on the open road ... without worry. Serengeti has installed photochromic glass lenses in the Brando, complete...