iPhone sun shade ?

[Charlie Bravo_imp]

My family bought me a GPS, back in the days of flip phones. I couldn't see the screen much less read it while in motion, and fashioned a sunshade from a thin sheet of plastic. Didn't work all that well. Now I have a giant phone, but it stays in my pocket. I'm old school and prefer a yellow sticky with the route noted on it turn by turn. On the Bmr I tape it to the windshield, and on the Honda I tape it to the speedometer face. Part of my problem is I like to wear curved lens dark safety glasses when I ride and can't read a phone screen thru the dark glass. I've tried bifocals, but can't ride with the visor up wearing regular glasses, too much wind in the eye.