The Castelli INEOS Aero Race 6. 0 is the model of "race comfort" for the road cyclist. Taking feedback from Team INEOS, Castelli designs a race-fit jersey that quietly supports you when you can't afford to be distracted. Computational fluid dynamics (CFD) are used by Castelli to craft the shoulders and seams so you'll have optimal range of motion to get low for city-line sprints and finish with friendly high-fives. We talk a lot about breathability, but it's critical to a racing jersey, and the Aero Race uses 3D mesh on the rear to dump heat that builds on climbs and warm days in the valley.To achieve pro-level aerodynamics, Castelli uses CFD and their Velocity Rev2 fabric on the front and sleeves, smoothly shaping the wind around you and maximizing aero efficiency at 18. 6-34. 2mph. Pocket placement and aerodynamics can do a tug-of-war at times, as you've probably felt with pockets that are too loose and wrinkle when you're trying to stay streamlined. Castelli steps up to this challenge by using a drop tail that maintains waist position and pocket placement, keeping the jersey fitting snug, while you are battling for the win.