The Castelli Perfetto RoS Vest is the ultimate cycling gilet, providing that extra bit of protection on bad weather days while keeping you warm and dry too. The front of the Perfetto Vest uses GORE-TEX INFINIUM 203 fabric. This fabric blocks out all the wind and sheds light rain with ease. Its stretchy and breathable too, meaning youre not going to overheat when the pace picks ups. The back of the vest uses Castellis Nano Flex Light Woven fabric for extra breathability and good water protection. The vest closes with a YKK Vislon zipper for easy ventilation adjustment on the fly and has a dropped tail for a bit of extra coverage from road spray. There are two rear pockets with a pump sleeve so you can carry all you need. Key Features Race or training vest with windproof front and rain repellent back GORE-TEX INFINIUM 203 fabric on the front Nano Flex Light Woven on back YKK Vislon zipper for easy ventilation adjustment 2 rear pockets with pump sleeve Dropped tail with reflective panel 14 20C / 57 68F Weight: 175g (Large)