Our advanced HydroClean™ Plus polarized lenses are included on all Heritage Collection styles . They start with Hobie's proven polarized film technology.A series of enhanced hydrophobic and anti-reflective coatings are then applied toeach lens under carefully controlled conditions. The result is a lens that shedswater, resists dust and grime, is easy to clean and reduces distracting reflectionsfrom light sources. Our HydroClean™ and HydroClean Plus™lenses continue the Hobie tradition of eliminating glare, innovation and qualitythat(you) 've come to trust and rely on. Features: Polycarbonate Lenses Stainless Steel Non Slip Silicon Nose Pads 8 Base Curve Rx Friendly