When you're in a race, every second matters. Aerodynamics plays a key role in helping riders get faster. The Castelli Aero Race 4.1 Jersey FZ is a lightweight, breathable, and aerodynamic jersey that saves approximately 12 watts at 40 kph compared to a normal race-fit jersey. It features velocity dimpled fabric on the front and shoulders for improved wicking and faster drying, a full-length YKK Vislon zipper with a neck protector, Nervato fabric at the armholes for improved aerodynamics, and silicone gripper elastic at the waist. It comes with three rear pockets so you can store your riding essentials and a zippered rear pocket for secure storage. Reflective elements improve your visibility in low-light conditions.
Saves approximately 12 watts at 40 kph
Velocity dimpled fabric on the front and shoulders for improved wicking and faster drying
Reflective elements improve visibility in low-light conditions
CASTELLI SIZING INFO
Castelli 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.
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