Promate is known for the designing, manufacturing, and distributing state-of-the art diving equipment. The “Sea Viewer” color correction mask and its underwater color correction lenses in Red (bring up lost red color at depth – great for warm water diving). Mirror Coated Lenses (hides your eyes and reduces glare while diving) and 100% UV protected tempered safety glass lenses provide the perfect view. Ideal for medium faces. A patented purge design and patented channeled skirt design directs bubbles away from view. Crystal, liquid silicone injected skirt and strap and double edge comfort seal makes for a perfect fit.