These trendy eyeglasses are made from TR-100, kind of memory plastic, extremely flexible and durable. The frames can restore their original shapes even after bending, twisting and crushing. Total weight is only 13 grams with basic lenses. The super lightness provides comfort wear all day long, you could hardly feel that you are wearing prescription glasses. Just perfect for those who need glasses most time. The modified rectangular lenses are compatible with single vision correction needs and come complete with nose pads that automatically adjust to fit your face for added comfort. These sporty and fashionable glasses are similar to the Nike sports glasses.