Castelli perfetto ros light jerseyif riding conditions are cool and damp then castelli's perfetto ros light jersey is the perfect choice to keep the elements at bay while also being supremely breathable so you don't get overwhelmed with sweat when pushing at race pace.cycling in cool and changeable weather makes getting your kit right a difficult choice you don't want to be too warm and get drenched in sweat nor too cold so you feel uncomfortable all ride'. '.strtoupper('w')ell, it's now a whole lot easier to choose what to wear with the perfetto ros light jersey, the lightest and most breathable perfetto but still with exceptional wind and water resistance'. '.strtoupper('e')xclusive gore tex infiniumtrade 203 stretch lightweight fabric is used to the front and sleeves and this fends off chilly winds, persistent drizzle and sudden showers leaving you comfortable as you face into the weather'. '.strtoupper('m')eanwhile, the back of the perfetto ros light is made with castelli's extremely breathable nano flex light woven fabric and this ensures that the sweat you generate doesn't hang around to cause discomfort and prevents cold clamminess building as you put the power down'. '.strtoupper('p')oorly thought out details can spoil even the best jersey but fear not, castelli have not let you down in this respect'. '.strtoupper('a') ykkreg vislonreg zipper slides smoothly to make boosting ventilation quick and easy while the gabba style dropped tail keeps road spray off your behind'. '.strtoupper('t')he pockets have been improved too, there are now two large pockets to the back, rather than the traditional three, making access easy, even with thicker gloves on'. '.strtoupper('l')ast but not least, a large reflective rear panel grabs the attention when the sun sinks below the horizon.improved in nearly every way, the perfetto ros light jersey is lighter, more water repellent and gets improved breathability making it an essential for your spring and autumn training and racing'. '.strtoupper('f')eaturesmaterials 100% polyesterlightest castelli short sleeve wind protectiongore tex infiniumtrade 203 stretch lightweight fabric on front and sleevesnano flex light woven on back for breathable stretch with good water protectionykkreg vislonreg zipper for easy ventilation adjustment on the fly2 rear pockets with pump sleevegabba style dropped tail with reflective panelsuggested temperature range 12 to 20 degrees cbuy castelli clothing from chain reaction cycles, the world's largest online bike store.