Castelli Perfetto RoS 2 Wind SS Jersey Men electric lime

The Perfetto RoS 2 Wind Jersey started life as a request from Castelli's pro riders: I want to wear the Gabba all the time, but sometimes it's too hot. So a somewhat lighter and more breathable Gabba became the Perfetto Light.

With the fourth generation, Castelli've also changed the name from Perfetto Light to Perfetto RoS 2 Wind Jersey. And it has become a staple in their autumn and spring wardrobes because it's so useful in so many situations, which makes it very hard to define. In one sense it's a warmer vest, since it has the same construction as the Perfetto RoS 2 Vest but with short sleeves. In another sense it's a less warm Gabba.

In another sense it's a jersey with front wind protection.
Regardless of how you define it, you'll appreciate how it gives the right amount of protection on cool days while maintaining a high level of breathability. It makes you feel warm and protected, yet offers almost the same lightness and freedom of movement as a summer jersey.

For mild days, it'll be used as a jersey over a light base layer with Seamless arm warmers. For rides in cooler or changeable conditions, it'll be layered over a jersey, with either Seamless or Nano Flex arm warmers.

The "2" part of the name refers to the updates to the latest version, including a YKK Vislon zipper with both top and bottom openings for more adjustable ventilation. The reflectivity on the back is more visible, the three pockets hold more gear, and the extended "tail" has been reduced to make the piece more packable.

GORE-TEX Infinium Windstopper
Experience total windproofness and maximum breathability for comfort in cool and windy conditions. The light, breathable membrane blocks the wind while allowing vapors to escape, keeping chill effects to a minimum. An additional layer is available in some GORE-TEX Infinium Windstopper products for more protection and insulation. Durable treatment to the outer layer provides a complete shield against the wind and is highly water resistant.