Cycling rain jackets have, until very recently, been repurposed mountaineering jackets. With a bulky construction, mountaineering fabrics, insufficient breathability and terrifying aerodynamics. The is the exact opposite of this. Being lightweight, aerodynamic, waterproof and lightweight, it is designed specifically with the modern Competitive Road cyclist in mind Gabba-Like ConstructionThe Gabba Cycling Jacket changed the way you dress for moderate conditions. So Castelli brought Gabba-like construction to their top-of-the-line heavy rain jacket. But as a new material construction technology was needed, Castelli worked with eVent® to develop the lightest ever (and exclusive) version of their PTFE high-breathability membrane. The outcome was tested by Team Cannondale-Garmin riders and got unanimous approval from the Team Lighter, Compact and More AerodynamicThe new jacket had to be lighter, more compact to fit in a pocket, and more aero than ever before. So an extreme stretch version of the eVent fabric was created to use on the shoulders, elbows and side panels. The resulting jacket fits close to the body and has minimal volume, yet without being too tight and binding when in the tuck position. Castelli thought through all the details, from easy opening and closing cuffs, the fact that you don’t want to pull up the jacket to access your jersey pockets when it’s raining, to the finer detail of making the zipper easy to open and close even though it’s completely waterproof. There’s so much innovation in this jacket that Castelli believe they have just invented another category changer Features:Packs up small to easily store in jersey pocketMaterial: Ultra lightweight eVent® fabricWaistband: Silicone elasticPockets: Two externalWrist Closure: Quick-lock, magnetic string keeperSafety: Reflective trim for 360° visibilityWaterproof: Fully taped seamsZipper: YKK waterproof Vislon®Weight: 210gTechnologies Rosso Corsa: The Rosso Corsa label is only applied to the highest-level products that 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. eVent Waterproof: eVent waterproof fabric keeps you dry in wet conditions. It’s waterproof outside while allowing perspiration to escape from the inside through millions of tiny pores. In fact, eVent is 30% more breathable than its next closest competitor. eVent is the smartest choice for athletes who need and demand the highest possible performance and comfort from their apparel Buy Castelli Clothing from Chain Reaction Cycles, the World’s Largest Online Bike Store.