Made to be the perfect vest. GORE-TEX INFINIUM WINDSTOP - PER wind and water protection on the front, and a breathable nanotechnology water-repellent back. Stretch fit, and packable into half a pocket when not needed. This is a core piece of your cycling wardrobe. Best race or training vest with windproof front and breathable rain-repelling back GORE-TEX INFINIUM WINDSTOPPER 203 Stretch lightweight fabric on front Nano Flex Light Woven on back for breathable stretch with good water protection Top- and bottom-opening YKK Vislon zipper for easy ventilation adjustment on the fly 3 rear pockets Reflective panel at bottom of pockets and around armholes 146 g (S) 12°-20°C / 54°-68°F