The Castelli Alpha ROS jacket has been designed to sit between your thermal jersey and lightweight windproof outer layer. With RoS (Rain or Shine) technology the Alpha jacket is ideal in both cold and dry or wet and cool conditions alike. Windstopper® 150 front and sleeves. Nano Flex Xtra Dry back for the most significant non-membrane water protection available. ProSecco Strada inner liner with 2nd front zip.Range 8 to +15 degrees C. The item "Castelli Alpha ROS Light Jacket Black Medium" is in sale since Monday, September 7, 2020. This item is in the category "Sporting Goods\Cycling\Cycling Clothing\Jerseys". The seller is "steady-velo" and is located in Armagh. This item can be shipped worldwide.