The Tifosi Sport Glasses Tyrant 2.0 Matt White Clarion Green has a strong TR-90 frame, with anti-slip rubber on the adjustable nose and legs. Supplied as standard with 3 ventilating and exchangeable sets of glasses. Clarion green mirror: ideal in sunny conditions, the clean mirror glass is water and sweat repellent. AC Red: recommended during sunny to cloudy weather. Clear: recommended in cloudy, dark weather.