The Castelli Men’s Tutto Nano RoS Jersey – Constructed with a modern-day miracle Nano Flex 3G fabric to provide a super special stretch fit that moves perfectly with you creating close-to-body comfort that practically eliminates fabric flapping in the wind. Finished with an incredible nanotechnology water-repellent finish to give this cycling jersey the ultimate Rain or Shine badge mdash on dry days you won’t know it’s there but when you encounter some light rain or wet roads then you stay water-free. Reflective panels on the shoulders and lower back offer 360deg visibility making sure you can be seen clearly even in low light conditions. The tighter knit of the fabric lets in substantially less air so you can stay warmer than a traditional heavy thermal jersey composition.