Melon Optics combines the expertise of Zeiss, years of experience on the mountain and a lot of pure insanity to give you a goggle with maximum performance while looking better than all the rest! The Alleycat uses Zeiss\' experience in lens manufacturing to offer you a choice of interchangeable, shatterproof lenses that are suitable for all conditions. These sunglasses are made of super flexible, super hard TR90. The rubberised temples and soft nose piece provide ultimate comfort. FeaturesMelon Optics Alleycat sunglassesZeiss Vision Sunlens Performance collection Improved clarity and contrast for best visibilityInterchangeable lens systemIntelligent ventilation systemHyperflex TR90 frameRubberised nose piece and templeMade in Italy