PERFETTO VEST IS NOW EVEN MORE PERFECT. The Perfetto Vest has been a favorite with everyone from our pro riders to Castelli staff to performance cyclists everywhere. But we wanted to make it even more perfect, so we developed a new exclusive GORE-TEX INFINIUM WINDSTOPPER fabric that is both lighter and more water repellent than the old fabric while maintaining the stretch and breathability. We matched it up with better water repellency in the back while maintaining the breathability, and further improved details like the back pockets and reflectivity. A more perfect Perfetto Vest.