I have a pair of Bolle polarized and really don't care for them when cycling but not for the reasons the LBS stated. On some cars and trucks, they make the windshields appear 3D and I find that distracting. Also, my cell phone is mounted on my handlebars and the new cell has a clock display on the lid when closed, that the polarized glasses make impossible to see. Glare from windshields just doesn't seem to be the problem I thought it was to begin with.