ESS Crossbow Replacement Lens - Hi Def Yellow ThisClearreplacement lens for theCrossbow® eyeshield is built from extra-thick, 2.4mmhigh-impact polycarbonate, and featuresESSOPTICS™ for distortion-free clarity and 100% UVA/UVB protection. ESSClearZone™FlowCoattechnology is engineered to eliminate fog inside the lens and prevent scratches outside. The Crossbow'sDedBolt™Lens Locksystem allows for rapid lens interchange. Crossbow® replacement lenses are available in Clear, Smoke Gray, in Hi-Def Yellow, Hi-Def Copper, Hi-Def Bronze, Polarized Gray and Laser Protective (LPL). Crossbow® replacement lenses are compatible with bothCrossbow Tri-Tech Fit™ frames (for normal use) andCrossbow Suppressor™ frames (for use with ear cup hearing protection and communications gear).