If you have a need for specialized mask lenses, IST Proline has multiple options for you. The OL80 dive mask lenses are available in clear, tinted and optical corrections and can be fitted to a number of different mask styles. The prescription lenses range from -1.0 to -8.0 and +1.0 to +4.0. The tinted lenses offer sharp, clear vision and reduced glare both on the surface and underwater. IST’s M200 Synthesis mask, for example, can be easily fitted with the OL80 lenses, and its high-quality, liquid-injected silicone skirt accommodates a wide range of facial profiles.