THE SPRING AND FALL DO-EVERYTHING JERSEY Our RoS Rain or Shine products are made to be your favorite garments for dry weather, yet provide significant water protection. We made this jersey with a double-layer fabric that keeps more wind out than your traditional jersey, yet has no membrane so still has some airflow to maximize breathability. Hence the Nelmezzo name – Italian for in the middle. The tighter weave and new Nano Flex Xtra Dry make this all but waterproof: you can wear it by itself on wet roads or in light rain/mist, although in steady rain you will likely still reach for a rain shell.