I spent alot of timing on this also. I need a prescription for distance and my RX can't be done on typical curved lenses at a place like Pearl Vision. So I ended up ordering about 3 different pair of frames w/o lenses from Wiley X (they have special equipment to do RX on very curved lenses) to determine which fit my stupid head (oops, there's that brain washing from my Wife again!). Once I picked the best pair for me, I sent all 3 back, 2 for a credit and they made my RX for the ones I liked. I typically ride w/a half helmet so w/o a shield I went w/polarized, transitions lenses. It's worked pretty well, no fogging and they are great day or night. I still get a little air/dust up in them at times but overall they have worked out quite well and I would recommend them...
