The Tifosi Sport / Sunglasses Talos Race Blue Clarion Blue has a Strong TR-90 frame, anti-slip rubber on the adjustable nose and legs. Comes with 3 interchangeable ventilation sets of glasses. Clarion blue mirror: ideal in sunny conditions, the clean mirror glass is water and sweat resistant. AC Red: recommended during sunny to cloudy weather. Clear: recommended in cloudy, dark weather.