See the sea the way it was meant to be seen with the Seadive Eagleye SL HD Purge Scuba Mask. The nose purge helps keep the inside of your dive mask dry from accidental mask flooding.The Seadive Eagleye SL HD Snorkel Mask features RayBlocker-HD tempered glass lenses for clear, glare-free vision above and below the waves. Most scuba masks come with tempered glass lenses nowadays, but only the Seadive Eagleye SL HD Scuba Mask treats that tempered glass with a special RayBlocker-HD treatment that blocks out harmful UV rays as well as the glare and distortion other masks let through. This improves visual clarity in bright environments, and also reduces the time it takes your eyes to adjust as you go above or below the surface. The anti-fog design also features a patented nose purge to help clear out any water that leaks in, and there is an easily adjusted buckle on the mask skirt to make getting the perfect fit simple. The transition from below the surface to above can be a challenging adjustment for the eyes, but the Seadive Eagleye SL-HD Snorkeling Mask features RayBlocker-HD lenses that block harmful UV rays while also easing the transition by limiting glare and reducing surface grit. The tempered glass of the mask lenses improves safety, and an anti-fog design keeps vision from getting cloudy no matter what the water temperature is. An easy adjust buckle on the snorkel mask skirt makes it easy to get the right fit, and a patented nose purge moves out water without affecting the seal to your face.Scuba Mask with Nose Purge Features: Tempered Glass Construction for improved durability and safety RayBlocker-HD Lenses reduce glare and surface grit Protection against harmful UV rays Quicker vision-return upon surfacing Designed to resist fogging in any water temperature Easy-adjust buckle makes getting the correct fit easy Nose purge design makes it easy to expel any water that gets in