As Castelli's Aero Race 5.1 Jersey reigns "King Aerodynamics," the 4.1 model takes the cake on overall comfort and versatility. Still very solid in the aerodynamic department, the Free AR 4.1 also offers a perfect fit with exception moisture management through its Velocity fabric on the front and shoulders. The silicone gripper elastic at the waist ensures the 4.1 remains anchored in place, while the Nervato fabric at the arms sits flat to the bicep for an aerodynamic fit. Though the Free AR 4.1 may not be a skin suit, it can save approximately 12 watts at 40 km/h compared to a normal race-fit jersey, making a perfect piece to dawn at the next criterium or road race.
Free AR 4.1 Jersey FZ 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
Castelli Men (Unisex)
1. On the bike, your Castelli jersey should fit close to the skin. 2. Off the bike, your Castelli jersey might feel tight across the chest and a little short in front. 3. Castelli ProSecco treatment helps perspiration evaporate quickly to keep you cooler and drier. 4. Castelli jerseys are designed with the sleeves articulated forward for maximum aerodynamic performance. 5. Bibshorts should fit tightly enough to support critical leg muscles through compression without inhibiting movement and constricting blood flow.
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