I leave the 'going around town' to my wife with her travel system, etc. I, however, take my 4 month yo daughter around various forests, beaches et al and a sun shade will just not do as I need something robust and something I don't need to change the angle of every 2 minutes! As I use an old Mountain Buggy for this I cannot get a 'suncover' for this...but now I would not...This product is fabulous as far as I'm concerned and my daughter is more than happy to wear them for 2+ hours on a walk.
One thing...Some of the older generations may need reassuring that they are proper sunglasses!!
I highly recommend.