Darwin - TRY AT HOMETry Before You Buy. Find Your Perfect Pair. Not sure if The Darwin is right for you? Try it on at home! Our Try At Home service lets you test this fabulous frame in the comfort of your own space no pressure, no guessing. Youll receive The Darwin fitted with clear demo lenses so you can check the fit, style, and feel. When youre done, just pop it back to us. Includes clear non prescription lenses Try on for up to 5 days at home No commitment just