Troubled by Fogging of your motor cycle Visor. Very few products actually stop the Fogging up of your visor. Fog Biter was designed by a rider who just couldn't take it any more. We give this a big thumbs up, it actually stops the Fog!

The way it works is it allows you to breathe through your nose or your mouth but only allows the exhale to travel down and out your helmet. This is great on the track or on the highway. Will fit every helmet!