In Hawaiian, 'opihi is the word for an aquatic snail with a shallow conical shell-also known as limpets. The base of their shells are almost perfectly round, and also happen to be the inspiration of our latest style of the same name. Our version of 'Opihi is an over-sized fashion frame constructed of resilient, lightweight, and pure titanium. Added visual interest is drawn from the distinctive, projecting top line of the double bridge. Lens Material: MauiBrilliant - Maui Jim's most advanced lens material that features optics nearly as clear as glass with just one-third of the weight.