- One of the biggest problems associated with riding motorcycles is clear vision. As well as keeping the outside of the visor clean, the inside also needs to be kept clear. The main problem on the inside of any visor is condensation, mainly caused by breathing, but weather conditions can also have a big effect. Shift-It Anti-Fog has been created to leave a very fine film on the inside of the visor to act not only as a form of double glazing, but also to bead any condensation and aid its dispersal. It is now widely used by a number of race teams, riding schools and also police forces.