Castelli Women's Perfetto Light RoS

With just a base layer it's a wind-protection jersey for mild conditions. Alternatively, use it like a vest over a jersey with added protection over your shoulders. Lightweight, breathable front wind protection with all-over water repellency. Features: Lightest Castelli short-sleeve wind protection GORE-TEX INFINIUM™ WINDSTOPPER® 203 Stretch lightweight fabric on front and sleeves Nano Flex Light Woven on back for breathable stretch with good water protection YKK® Vislon® zipper for easy ventilation adjustment on the fly 2 rear pockets with pump sleeve Gabba-style dropped tail with reflective panel