Kanaio Coast, designed with adventurists in mind, is built with a lightweight injected nylon frame and hidden spring hinges for a customizable and comfortable fit for any activity level. Design: Single bridge with adjustable nose pads Nylon frame front and temples Traditional pin hinge Technology MauiPure is Maui Jim's most popular lens material; combining crisp optics with ultra light and excellent scratch & shatter resistance Exclusive PolarizedPlus2 lens technology Additional Details A square silouette that best compliments diamond, heart, oval, and round face shapes Face size: Large