Ever ride into fast changing weather and find your helmet shield instantly fogged over? I’ve had that unpleasant experience and if there is a way to eliminate it, I’m all for it. This new polymer coating made from silica nanotubes, eliminates fogging and it’s a permanent solution, unlike all of the spray on products out there that you apply over and over. The coating works on windshields, eyeglasses and all sorts of similar items and the surfaces never fog. A helmet shield that never fogs? I like it.