CASTELLI AERO RACE 6.0 JERSEY FZ 2019SO MUCH AEROWhen every second matters in your race, you'll want to have the aerodynamic advantage. There are many ways to gain an aero advantage, but one overlooked way is the type of apparel you wear. The Castelli Aero Race 6.0 Jersey FZ benefits heavily from CFD analysis of wake flow in the riding position for fabric and seam placement. It is engineered for aero efficiency at 30 to 55 km/h and has Airflow shoulder construction. There is Velocity Rev2 fabric on the front and sleeve and 3D mesh on the back for enhanced breathability. The drop tail allows perfect pocket placement while keeping the jersey fitting well at the waist.FeaturesReflective piping enhances visibility in low-light conditionsElbow-length stretch sleeves with raw-cut edgeDrop tail allows for perfect pocket placement while keeping jersey fitting well at the waistSizingSizeSmallMediumLargeExtra LargeXX-LargeXXX-LargeChest (in)36"37.5"39"41"43"45"Waist (in)31"33"34.5"36.5"38.5"40.5"Hip (in)37"38.5"40"42"44"46"Inseam (in)32.2"32.6"33"33.5"33.8"34.2"CASTELLI SIZING INFOCastelli products are aggressively cut and are meant to fit optimally in the riding position. If you are in-between sizes, you may want to size up as the fit may be very form fitting. If you have questions, please contact our Gear Advisors. | Castelli Aero Race 6.0 Jersey FZ 2019 Men's Size Small in Dark Gray