Cat Eye frames are the most famous type of sunglasses in all manner. You can see many different variations in cat eye sunglasses like round and rectangular shapes, and they are made up of materials that ran the gamut from plastic to metal and then to acetate. Nowadays the style of sunglasses evolves so quickly that it can be hard to keep up with the latest trends. These cat eye frames are the most popular music festival sunglasses. They are extremely stylish and mostly suits everyone. Here are some flattering designs of popular sunglasses styles.