The Pitchman has classic notch bridge that sets Oakley design apart from other brands is flanked by smoothly rounded lenses and lightweight steel temples, and after we added Hollowpoint™ hinges that salute the genius of hubless motorcycle wheels, we knew we had the next evolution of Pitchman eyewear. Made of comfortably lightweight O Matter™ for all-day comfort, the frame stays securely in place with the grip of Unobtainium® stem sleeves.FEATURES Youth inspired lens shape design drawn the need to express style Strength, flexibility, and hypoallergenic features of stainless steel Three-Point Fit holds lenses in precise optical alignment while eliminating pressure points Constructed of lightweight, durable O Matter™ material which is 25% lighter and 2x stronger than acetate