The tifosi pro escalate is one of the most exciting innovative sports eyewear product developments from tifosi or any other competitor brand in many years featuring ics interchangeable component system technology the tifosi pro allows you to switch effortlessly between frameless shield half frame and full frame styles now you can access 2 or 3 product styles in one package for significantly less than the cost of similar tifosi styles separately different styles and different lenses inc