Saving 12 watts at 40km/h over a normal race-fit jersey, the Castelli Free Aero 4.1 Short Sleeve Jersey is a very serious piece of kit, yet it is still classic enough looking that friends or rivals won’t realise the advantage that it bestows. Slightly adapted from their Giro d’Italia winning jersey, the Aero Race 4.0, the 4.1 version gains a zipped security pocket, updated Velocity fabric and a flap behind the zip, along with reflective strips for visibility.
Features
Saves approximately 12 watts at 40 km/h compared to a normal race-fit jersey
Velocity dimpled fabric on front and shoulders for improved wicking and faster drying
Full-length YKK® Vislon® zipper with neck protector
Nervato fabric at armholes for improved aerodynamics
Silicone gripper elastic at waist
Mesh raw-edge arm grippers
Zippered rear pocket
Reflective heat-transfer viz strips
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