ESS Eyewear Crosshair Replacement Lens, Hi-Def Yellow All Crosshair components are compatible and fully interchangeable with the ESS Crossbow and ESS Suppressor The ToughZone lenses resist scratching, and ESSOPTICS provide distortion-free clarity and 100% UVA/UVB protection Built from extra-thick, 2.4mmpolycarbonate Crosshair replacement lenses are available inClear, Smoke Gray, Hi-Def Yellow, and Hi-Def Copper All Crosshair replacement lenses include a black nosepiece