Why not buy the Oakley L frame goggles designed to be used with glasses?
£30 and you keep a helmet you know fits.
Sent from my iPhone using Tapatalk
TA700 2010 - Givi full set, Centre Stand, Scotoiller with LubeTube, Honda Tall Screen, Givi Crashbars, OEM Heated Grips, Fenda Extenda, Bar Risers, SSteel Spokes, Arrow Race-Tech DarkLine Exhaust, even bigger smile!!
TLD 2010 - 600 miles, 18 hours travelling, 4 hours sleep and no pint of guinness!! Must go back for that....