I've worn Arai helmets for years and am very lucky to obtain genuine double glazed Arai visors which the guys at BHV also bring in from Japan but only for the very latest Arai and at some cost.
The discussion then went on to their latest anti fog visor single lense called 'Dual Coated' and blimey it's good and comes in around £26 and saves on even needing a Pinlock.
That's a good deal, the pinlock alone for the C3/E1 costs over £22 :icon_cry: and I'm lucky if it lasts a full year.