What do you think is the most popular eyeglasses frame material today?

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In my opinion, there are two kinds of materials are especially popular, plastic and titanium. The former is a kind of lightweight and comfortable material, especially for hip or retro look; while that latter is a good choice for sports, such as basketball, bicycles and golf clubs. Plastic frames come in a wide variety of styles, including thin plastics, black, bold '60s-style eyeglasses frames and layers of colored plastics laminated together in order to create a unique effect; while titanium frames rate high in both the function and the fashion categories, it not only durable, but also is a big draw for men as an the frame material. This material is super non-corrosive, lightweight and stylish as well!