With incredible new softshell fabrics from GORE-TEX and an innovative redesign, the Perfetto ROS Long Sleeve truly stands alone as a protection-series pieces that feels like well equipped jersey, with the real protection of a jacket. The design, cut, fit, and aesthetic screams jersey and with a broad effective temperature range and smart layering options, you can ride with it during the shoulder seasons, on warmer winter days or on cold, wet mountain mornings in June. The exceptional ROS wind and water protection levels are augmented by responsive moisture transfer and very reasonable weight for such a piece. The protection allows for heat retention, but the blocking features ensure no infiltration if desired. There is no actual thermal material, but you will be surprised how it keeps you warm. When the temps are a cooler, a warmer baselayer can handle the thermal requirements while maintaining the breathability you need for hard efforts.

In Castelli's parlance the ROS Long Sleeve gets the RoS treatment: Rain or Shine. The same breathability and fit you've come to expect from the Perfetto series, but thanks to new, Castelli/GORE developed INFINIUM WINDSTOPPER fabrics with significantly improved rain protection- which features seam sealing on the shoulders, the capabilities are advanced. The designers have also differentiated the fabrics- heavier 205 and more blocking on the front, and lighter, lower protection and greater breathability from the 203- so you get extra warmth on forward-facing surfaces and lighter stretch on rear-facing surfaces. The collar and rear tail come from the Gabba series, with extra length and coverage designed for an assertive cycling position. Attack your training year round, with ROS protection that only enhances the already fantastic Perfetto Long Sleeve concept.