Castelli Women's Aero Pro Cycling JerseyFrom the excitement and rush of a race to the satisfaction of a tough training session ticked off, the Castelli Women's Aero Pro Cycling Jersey is a cycling top you can trust to deliver exceptional comfort and smooth aerodynamic performance. Free Speed Split Second - the name of Castelli's first aero-focused cycling jersey. Until that point, cycling jerseys were only about moisture management. Castelli changed the game yet again. The Women's Aero Pro Cycling Jersey has the DNA of that very first aero jersey but with modern CFD (Computational Flow Dynamics) to analyse wake flow, it's so much more efficient at reducing drag. It's honed for speeds between 30 and 55 km/h, just as you'd find in most pelotons.Less drag equals more speed for the same power output. Faster without more training. Now that's an advantage worth having. Cool ComfortIt's not just aerodynamically efficient though. Moisture build-up is also dealt with rapidly and with ruthless efficiency. All fabrics are quick-wicking and a 3D mesh back, similar to their high-performance base layers, ensures you're kept cool and dry as you build up speed. All the effort to go fast will mean you need you to keep fuelled. Fear not, the Aero Pro has space for all your nutrition via the easy to reach back pockets. The drop tail design keeps them perfectly in position and minimises sagging when they're loaded up too. The Women's Aero Pro Cycling Jersey is Castelli's most aerodynamically advanced design to date and yet it's also their best fitting too - Just ask their WorldTour professional riders. A remarkably comfortable high-performance cycling jersey whether it's your longest days in the saddle or a short and intense criterium race.Features:Materials: 82% Polyester, 18% ElastaneCFD-based fabric placement and seam constructionEngineered for aero efficiency at 30 to 55 km/hAirflow shoulder constructionVelocity Rev2 fabric on front and sleeve3D mesh back for breathabilityElbow-length stretch sleeves with raw-cut edgeYKK® Vislon® zipperDrop tail allows perfect pocket placement while keeping jersey fitting well at waistWeight: 99g (Small)Suggested Temperature range: 16 to 35 degrees CBuy Castelli Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.