What is the fine-grained topic of the following text: While vintage Oakley Frogskins were produced in a wide variety of frame and lens color combinations, it's hard to beat the look of the crystal clear frame with these Fire Iridium lenses that pick up plenty of hues of orange, red, and yellow out in the sunlight. Only return the topic.
Vintage Oakley Frogskins sunglasses with crystal clear frame and Fire Iridium lenses