Perfection over time. Oakley masters the art of the perfect open-edge lens architecture in the HALF-X sunglasses. Inspired creation from runners and cyclists who need a full field of vision with no frame rim or blocking any downward view. The X METAL® was demised from 425000 watts of plasma lightning and shaped into an ultra-lightweight titanium alloy frame. Art and science have been brought together in such a manner that you cannot tell where one ends and the other begins. Oakley has created the ultimate standoff between style and technology spawned from athletes and engineers. It's the perfect storm. The HALF X‰ sunglasses have a lightweight all-metal frame that stays in place with a Three-Point Fit that takes advantage of supple UNOBTAINIUM® components specially formulated to increase grip with sweat. Custom-engineered spring hinges add even more comfort.