Castelli Aero Pro 8S Jersey: Maximum Speed, Ultimate Aerodynamics

In the world of performance cycling , every watt and every second counts. 80% of air resistance comes from your body, and your choice of clothing can make the difference between winning and being left behind. The Castelli Aero Pro 8S Jersey is engineered from over a decade of aerodynamic research and innovation , making it the fastest jersey Castelli has ever made. The “S” in 8S stands for speed —and you’ll feel it on every ride.

Designed for top speed

With advanced CFD technology and extensive wind tunnel testing, the Aero Pro 8S is optimized to let you cut through the air faster than ever before .

• Advanced ribbed structure on the shoulders reduces air resistance and provides up to 6% CdA savings
• Strategically placed seams minimize turbulence and maximize aerodynamic advantage
• Ultra-light and streamlined materials ensure a perfect racing fit
• Maximum Cooling and Comfort

Performing at the highest level requires more than just speed —you have to stay cool, comfortable, and focused, even during the toughest rides.

• Lightweight and breathable material for optimal ventilation and sweat wicking.
• Perfect stretch fit that feels like a second skin without compromising freedom of movement
• Glued sleeve ends provide a smooth transition on the skin and extra comfort

Practical Race Functionality

The Aero Pro 8S is more than an aerodynamic marvel. Castelli has considered every detail to make the jersey practical and functional for long training rides and race days.

• Elastic waistband keeps the jersey in place and supports the back pockets
• Three spacious back pockets provide ample storage for food and essentials
• YKK® Vislon® zipper for smooth operation and quick ventilation
• Reflective details for extra visibility and safety in low light conditions

Why Choose the Castelli Aero Pro 8S Jersey?

The Aero Pro 8S isn’t just a jersey—it’s an advanced speed weapon for cyclists who don’t compromise on speed, comfort, or function.

• Aerodynamically optimized with CFD-based fabric and seam placement
• Lightweight and breathable for top performance in all conditions
• Perfect racing fit without compromising freedom of movement
• Smartly designed back pockets and elasticated waistband for maximum stability
• Premium finishing and details such as bonded sleeve ends and a smooth Vislon® zipper