CLIMBER'S 4.0 JERSEY-WHITE/BLACK

The Castelli Climber's 4.0 Jersey in White/Black is purpose-built for cyclists who ride in extreme summer conditions and demand exceptional cooling with professional-level performance. Combining ultra-lightweight fabrics with an aerodynamic race fit, this jersey delivers maximum airflow while maintaining excellent moisture management during long climbs, endurance rides, and fast-paced training sessions. The highly breathable construction keeps your body cool without sacrificing comfort or speed, while the full-length YKK® Vislon zipper allows easy ventilation adjustments throughout your ride. Three rear cargo pockets provide ample storage for nutrition and ride essentials, making it practical for both training and racing. Finished in a clean White and Black graphic design with premium Italian craftsmanship, the Climber's 4.0 Jersey offers the perfect combination of lightweight comfort, breathability, and aerodynamic efficiency for serious road cyclists.

Key Features

• Fit: Race fit for aerodynamic performance and superior comfort

• Fabric: Ultra-light breathable performance fabric for hot-weather riding

• Ventilation: Mesh-inspired construction enhances airflow and cooling

• Moisture Management: Fast-drying fabric efficiently wicks sweat away

• Closure: Full-length YKK® Vislon zipper for adjustable ventilation

• Sleeves: Raw-cut stretch sleeves for a smooth aerodynamic finish

• Storage: Three rear cargo pockets for ride essentials

• Comfort: Lightweight design minimizes heat buildup during long rides

• Design: White/Black performance graphics with modern race styling

• Performance: Optimized for climbing, endurance, and high-intensity cycling

Product Specifications

• Product Type: Men's Cycling Jersey

• Model: Climber's 4.0 Jersey

• Color: White / Black

• Gender: Men

• Material: Lightweight polyester blend with stretch performance panels

• Sleeve Length: Short Sleeve

• Fit: Race Fit

• Closure Type: Full-Length Front Zipper

• Pocket Configuration: Three Rear Open Pockets

• Recommended Season: Summer / Hot Weather

Cooling Performance

• Airflow: Lightweight engineered fabric maximizes ventilation during demanding rides.

• Heat Regulation: Built specifically for climbing and riding in high temperatures.

• Moisture Control: Rapid sweat evaporation helps keep you dry and comfortable.

• Stretch Mobility: Flexible construction supports unrestricted riding movement.

• Aerodynamics: Streamlined race fit improves efficiency while maintaining breathability.

Easy Operation / Usage

• Wear over a lightweight cycling base layer or directly against the skin.

• Adjust the full-length zipper to control airflow during changing conditions.

• Store nutrition, phone, and tools in the rear cargo pockets.

• Pair with Castelli bib shorts for a complete race-ready cycling outfit.

• Wash according to care instructions to preserve fabric performance.

Why Choose This Product

• Hot Weather Ready: Specifically engineered for maximum cooling during summer rides.

• Ultra-Light Construction: Reduces weight while maintaining premium comfort.

• Professional Race Fit: Supports improved aerodynamics and riding efficiency.

• Convenient Storage: Rear pockets keep essentials secure and accessible.

• Premium Castelli Quality: Trusted by professional cyclists for performance apparel.

In the Box

• 1 × Castelli Climber's 4.0 Jersey – White/Black