Promate Shamu Frameless Color Correction Mask Ideal for medium to large faces 170 degree wide view Crystal, liquid silicone injected skirt and strap Double edge comfort seal Ultra lightweight Extremely low volume Swivel and adjustable buckles Made in Thailand Underwater color correction lens 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) 100% UV protected tempered safety glass lenses