The SeaDive Eagleye RayBlocker-HD Mask with Purge is designed for divers who demand the clearest possible vision and effortless equalization. This innovative mask features a unique anti-reflective (ARC) coating that maximizes light transmission, giving you a high-definition view underwater, while the handy purge valve makes clearing your mask a breeze. Key Features: The RayBlocker-HD coating allows almost 100% of light to pass through the lens, providing a brighter and sharper image. The Sharper Image Technology further enhances visual clarity, while the blue tint on the inside of the lens reduces eye strain for more comfortable viewing. This mask also features a single lens for an unobstructed field of view and a comfortable silicone skirt with easy-adjust buckles for a secure fit. The low-profile purge valve allows for quick and easy clearing, and the fog-resistant coating helps keep your vision clear. Plus, it comes with a handy plastic box with a lid for safe storage and transport. Experience the difference with the SeaDive Eagleye RayBlocker-HD Mask with Purge.