Bunkerkings CMD VIO Lens Thermal HD MirrorThe CMD VIO Lens is the best possible quality available, with an improved thermal pane giving the goggle system a vastly superior anti fog performance. Combined with high definition polycarbonate materials, the optics of all CMD lenses also increase the clarity and depth of vision. The CMD VIO lenses are compatible with all Bunkerking CMD and Virtue VIO goggles. Hydrophobic Lens Coating A durable coating bonded onto the chromatic lens that repels