Crossbow Suppressor 2X+ kit includes two frames and three lenses: a Hi-Def Copper lens with an ultra-thin Crossbow Suppressor frame (for use with ear cups), a Clear lens with a standard Crossbow Tri-Tech Fit frames (for normal use without ear cups), and a spare smoke gray lens. Both frame options provide a universal fit. The Crossbow Suppressor also features Z-Bend geometry, ultra-thin temples, 2.4mm lenses, distortion-free ESSOPTICS, and ClearZone FlowCoat technology.