Respro Foggy Anti-Fog Mask (Blue) From  €27.35

Purchased this for cold weather riding. Was really hoping that it would eliminate or substantially reduce the amount of visor fogging. Seemed to work...at first. After the first 5-10 mins of riding, it was like it wasnt attached to my helmet at all. I wear glasses and there was no adjustment that got rid of the fog. Mounted it to an AGV helmet and still had to crack the visor to see. Sigh...

Great product and excellent delivery service