OverviewOakley Exchange features a mixed material design inspired by the best-selling Currency eyeglass and leverages Oakley's heritage with B1B grip textured Unobtainium earsocks. The lightweight O Matter front and stainless-steel temples are designed to provide all-day comfort while the earsocks help keep the eyewear securely in place. Get a complete Oakley pair when you order with Oakley Authentic Prescription lenses which come laser etched with the iconic ellipse logo for proof of authenticity and quality. WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.