Oakley 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. Oakley frames sold by authorized sellers, like Amazon, are eligible for all manufacturer warranties and guarantees. Click on the Oakley link above the product title to shop the entire sunglass and eyeglass assortment.