I just bought a Yema Helmet and use it while driving in a rainy day, I noticed that my helmet's visor is fogging up. It's very disturbing while driving. So I search the internet on how to stop my visor from fogging, and I found out about this anti-fog visor insert. I order online this WeePro antifog visor insert in China. Have any of you tried this insert before? I hope someone who already tried this will enlighten me if this product will really work. Thanks!