Bobster GXR Goggles (MATTE BLACK/AMBER LENS) The GXR series feature wrap around polycarbonate frames and includes a detachable strap, allowing use as a sunglass with the extra security of knowing they will remain in place. Cell foam adjusts to facial contours allowing the optimal amount of air flow. Temple to temple: 125mm. Polycarbonate frame. Anti-fog lenses.