Titanium glasses - memory alloy, extremely light, strong and flexible
Being such a lightweight material, titanium eyeglasses feel like you don't have any glasses on at all! The amount of comfort you experience is almost unprecedented. Pound for pound, titanium offers about the same strength as steel with half the weight. It's slightly heavier than aluminum but it's twice as strong when compared to that metal as well. Memory titanium is an alloy that has the added quality of retaining its original shape even after extreme bending.