Rudy Project has unified seamless advanced design technology and materials science to pruduce the Rydon FLEX blending cutting edge ergonomic features with advanced materials (carbon, aluminum, magnesium, silcium and titanium) to create a super lightweight, versatile, high performance sunglass. Rydon FLEX has been uniquely engineered with a carbonium frame and revolutionary aerospatial aluminum alloy (Kynetium) FLEX temples which combine magnesium, silcium and titanium to create an unbelievably lightweight, durable and flexible sport sunglass. It's Great For: Biking, Cycling, Running.