TYR Nest Pro Nano Performance Metallized Goggle (Titanium Metallic) TPR / Metal Made using the highest quality materials Tested to give you the edge in all your activities Used by both professional and recreational users The Nest Pro Nano Metallized is the newest member of the family. The Nano is 10% smaller than Nest Pro. Smaller, more compact frame and gaskets fit smaller faces and children. Soft TPR gaskets create a water-tight fit. The Nano gaskets fit in a more traditional fashion. Wide peripheral cellulose propionate lenses feature imbedded anti-fog properties and are UV protected. Metallized coating offers protection from the sun's glare. Great for outdoor pools and open water swimming. Preferred for athletes wanting maximum vision, extra comfortable fit and protection from the sun's glare.