Abstract: A clip-on sunglasses assembly having an elongated base member with a clip member secured to its top for detachably securing the base member to the bottom surface of the brim of a hat. A spring action sled is reciprocally mounted in a rectangularly shaped cutout portion of the base member. A one piece lens has its top edge secured to a lens holder member having a cylindrical shaped drum secured to its rear edge. The cylindrical drum is pivotally mounted in structure extending downwardly from the spring action sled. The lens can be pivoted between a down position and an up position and it is positively positioned in each of these respective positions.