Castelli Nelmezzo ROS Jersey

The RoS (Rain or Shine) range is all about supreme dry weather performance yet providing significant water protection. To this end, the Nelmezzo ROS Jersey uses new Nano Flex Xtra Dry, a double-layer and tightly woven fabric that makes it remarkably water and wind resistant without the need of a membrane which in turn also makes it highly breathable. Wear it on its own on wet roads or in light rain and mist without having to reach for your hard-shell jacket - leave that for when the heavens really open.

The design is kept simple but still highly functional, an easy sliding YKK front zipper allows you to easily increase ventilation if needed, reflective armbands and back panel catch the eye when the light fades and headlights come on, while three rear pockets, plus covered key pocket, provides the space needed for a few hours of riding. 

Warmer than a normal thermal jersey but more breathable than a windproof jacket it's just what you need for cold starts, chilly days of changeable weather or fast-paced winter rides.