You will fall in love with these sunglasses for its expert make and premium materials. Lightweight and perfect in fit, they offer the comfort for long duration wear. Let your eyes experience the cooling and relaxing sensation in the hot humid summer. Titanium is a high-tech metallic element that is lightweight, strong, and has Non-corrosive and hypo allergenic properties. It is Bio-Compatiple. Titanium has a highest strength to density ratio of any metallic element. Titanium Frames are strong and durable with twice the tensile strength of Monel.