Castelli Climber's 4.0 jersey 2024

Light. Dry. Fast.

Created for the hottest days when aerodynamics still matter. This jersey allows ample airflow, is quick to dry, and blocks more than 90% of UV rays on your back. A great choice for long summer rides or hot lunchtime rides in the middle of summer — or just add a base layer and it becomes a great three-season jersey. The Climber's 4.0 Jersey benefits from the same CFD-based seam construction as the Aero Race 7 Jersey, but uses the most aerodynamic 3D mesh fabrics we could find for optimal cooling. These fabrics also have an excellent soft and stretchy quality, which also gives this jersey a comfortable fit, which you need for big days in the mountains.

Rosso Corsa
The Rosso Corsa label is only applied to the highest-level products we make. Every thread and fiber, every curve and contour is obsessed about. Rosso Corsa represents a categorical breakthrough in cycling innovation and the meticulous craftsmanship you expect from Castelli’s performance-enhancing apparel.

Features

• CFD-based fabric placement and seam construction
• Engineered rapid cooling, light weight, and aero efficiency
• Airflow shoulder construction
• Flusso 3D fabric on front
• StradaPro 3D back for breathability
• Elbow-length stretch sleeves with raw-cut edge
• Elastic around waist to keep jersey in place and support pockets
• YKK® Vislon® zipper
• Contains bluesign® certified fabrics
• Fit: Race
• Temperature:22°C - 40°C / 72°F - 104°F
• Breathability and Lightness: 5/5.