The Roka SR-1X sunglasses is the SR-1 done bigger. With an enlarged lens, the SR-1x offers a 9% increase in FOV for only a 1g increase in weight over the SR-1. These lightweight frames are designed from scratch. Roka’s no compromise sunglasses give optimum performance without sacrifice. Train in these frames. Race in these frames. The titanium core wire design and GEKO retention system ensure a perfect fit every time you put them on. Get every performance advantage you need with the Roka SR-1X.