Promate Scanner Color Corrective Scuba Diving Snorkeling Spearfishing Mask - MK245V*Underwater Color Correction Lenses available in Red (bring up lost red color at depth great for warm water diving) or Yellow (for increased light, higher contrast and better separation, especially in low visibility) lenses *Mirror Coated Lenses (hides your eyes and reduces glare while diving) *100% UV protected tempered safety glass lenses *Ideal for standard medium faces face seal size W4 3 8 * H3 1 4 *Crystal, liquid silicone injected skirt and