Some products have been around for years and seem to fly under the radar, known only by the hardcore of our sport, like long distance riders, racers, and year-round riders. The FogCity ProShield is one of those products. The simplest description is that it's a transparent sheet of flexible plastic that adheres to the inside of faceshield and banishes all visor fogging. Actually, that is the description! And it works exactly as advertised, too.