Oakley X-Squared continues the legacy of invention, mixing light alloy of titanium, with some of the most advanced technology ever to refine the rays of light. Thus the originality becomes aggressive, and the look is not for the uninitiated. E 'for those who challenge the architects of life and develop their own design. This pair of sunglasses is the only 3-D sculpted, hypoallergenic, all metal chassis family of the Earth. Weight Resistance is phenomenal and hearing is amazingly light. Resilient flex couplers allow the frame to fit comfortably around the head. Components Unobtainium actually increase grip with sweat as they represent areas of contact for a three-Point Fit that holds lenses in precise alignment. The lenses are made of hydrophobic / oil repellent technology, performance coating that allows water to drain away to help maintain clear vision. It also fights stains of oils and lotions for the skin, and also rejects the dust. The lens itself was a