Castelli Free Ar 4.1 Jersey FZ

The Castelli Free Ar 4.1 Jersey FZ was Castelli’s fastest jersey just a few years ago. While the Aero Race 4.0 has taken the lead for fastest, the Free Ar 4.1will still save you 12 watts when compared to a normal race-fit jersey. Another difference between the two jerseys is the Free Ar 4.1 has a more stretchy fabric that fits more body types, not just the skinny pro level rider. The 4.1 also has a zippered rear pocket to securely hold in things like keys and money while the side angled pockets are easier to access riding food. Further comfort and performance are provided by a flap behind the zipper to protect your neck as well as the updated Velocity dimpled fabric on the front that is cool and aero. Aerodynamics is further improved by the Nervato fabric at the armholes that keeps the jersey in place without pinching skin. The Silicone gripper elastic on the waist also keeps the jersey comfortably in place. The Mesh raw-edge arm grippers are cool and soft against the skin as they too keep the arms flat and aerodynamic. The Ar 4.1 is a great jersey for a cyclist who is just starting out at bike racing or feels ambitious on fast competitive training rides and wants to maximize comfort on the bike.