The first light responsive frame from Ray-Ban, designed with a new patented UV acetate technology that redefines the versatility of our frames, powered by Transitions® technology. The unique colors and pattern of the frame are created using photochromic dyes that activate in seconds when exposed to UV light or UV rays. As the light gets stronger outdoors, so does the pigment in the frame. The exclusive new acetate meets the same quality standards as classic Ray-Ban acetate.