The Perfetto RoS 2 Vest is our attempt at the perfect vest.It´s warm and windproof yet breathable thanks to the Castelli-exclusive GORE-TEX INFINIUM™ WINDSTOPPER® fabric on the front and the membrane-free Nano Flex stretch woven back fabric.It´s splash resistant for wet roads or changing conditions.It´s light and packable, easily fitting in a jersey pocket with room to spare.It has three rear pockets of its own and a two-way YKK® Vislon® zipper you can open from the bottom to access gear in your jersey pockets.It has 360° reflectivity thanks to the reflective trim on the armholes and reflective band below the pockets.It fits close to body with a high collar that feels oh-so-comfy for cooler conditions.Espeficitations: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.