Castelli kept hearing so many people call the long-sleeve version of the Gabba jacket as “perfect”, so they have improved the design and then gave it a standalone title; the . Improved and Refined FitAlthough the previous design was a top performer, Castelli improved the water repellent finish so it will keep you drier without affecting breathability. The fit has been refined and laser cut for perfection and drain holes have also been added to the inside of the rear pockets so they cannot fill with water when riding in wet weather. The splash flap on the back has been completely redesigned to make it lie flatter and to have a more ergonomic fit and there is also a reflective logo back to keep you visible after the sun has set Fully Aerodynamic, Fully Breathable and Fully ProtectedFeaturing complete wind-proofing, excellent waterproofing properties and a storm flap construction at the rear to protect you from wheel spray, the Castelli Perfetto is at the top level of design and creates a fully aerodynamic, fully breathable and fully protected top that is perfect for riding in harsh weather Features:Material: Windstopper® X-Lite PlusZipper: YKK Vislon®Pockets: 3 Rear (with drain mesh)Weight: 386gTechnologies: GORE® Windstopper®: This soft, 4-way stretch Windstopper fabric has an extremely lightweight and breathable, outer and inner shell, which keeps wind out and the rider at a controlled temperature within. Windstopper® technology makes it ideal for use in cool weather. Nano Flex Fabric: Exclusively engineered by Castelli, they have taken the best elements of the thermal fleece stretch Thermoflex fabric and have coated it with millions of tiny nanofilaments to create the most water repellent fabric finish ever. Drops of rain water stay as spherical balls on top of the fabric or bounce off the fabric without leaving a trace. Rosso Corsa: The Rosso Corsa label is only applied to the highest-level products Castelli make. Every thread and fibre, every curve and contour is obsessed about. Rosso Corsa represents a categorical breakthrough in cycling innovation and the meticulous craftsmanship you expect from Castelli’s performance enhancing apparel Buy Castelli Clothing from Chain Reaction Cycles, the World’s Largest Online Bike Store.