CLIMBER'S 4.0 JERSEY-SULPHUR/TWILIGHT BLUE

The Castelli Climber's 4.0 Jersey in Sulphur/Twilight Blue is engineered for cyclists who ride in the hottest conditions and demand maximum cooling without sacrificing aerodynamic performance. Designed with lightweight, highly breathable fabrics, this premium jersey delivers outstanding airflow to regulate body temperature during long climbs, intense training sessions, and summer races. The race-fit construction closely follows your body for improved efficiency while allowing complete freedom of movement. A full-length YKK® Vislon zipper lets you quickly adjust ventilation, while the three rear cargo pockets provide convenient storage for ride essentials. Featuring moisture-wicking technology and an eye-catching Sulphur and Twilight Blue graphic design, the Climber's 4.0 Jersey offers professional-level comfort, ventilation, and style, making it the ideal choice for road cyclists seeking peak performance in warm weather.

Key Features

• Fit: Race fit for aerodynamic efficiency and all-day comfort

• Fabric: Ultra-light breathable performance fabric for maximum airflow

• Ventilation: Mesh-inspired construction enhances cooling in hot conditions

• 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 construction minimizes heat buildup

• Design: Sulphur/Twilight Blue graphics with modern race styling

• Performance: Designed specifically for high-temperature riding

Product Specifications

• Product Type: Men's Cycling Jersey

• Model: Climber's 4.0 Jersey

• Color: Sulphur / Twilight Blue

• 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: Engineered lightweight fabrics maximize ventilation during demanding rides.

• Heat Management: Designed specifically for climbing, racing, and hot-weather cycling.

• Moisture Control: Rapid sweat evaporation helps maintain lasting comfort.

• Stretch Comfort: Flexible fabric supports unrestricted movement in every riding position.

• Aerodynamic Efficiency: Close-fitting race cut minimizes wind resistance while maintaining breathability.

Easy Operation / Usage

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

• Use the full-length zipper to regulate airflow as temperatures change.

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

• Pair with Castelli bib shorts for a complete performance cycling kit.

• Wash according to garment care instructions to preserve fabric performance.

Why Choose This Product

• Hot Weather Performance: Built specifically for warm and humid riding conditions.

• Ultra-Light Construction: Reduces weight without compromising durability.

• Professional Race Fit: Enhances comfort and aerodynamic performance.

• Reliable Storage: Easy-access rear pockets keep essentials secure.

• Premium Castelli Quality: Trusted by professional cyclists around the world.

In the Box

• 1 × Castelli Climber's 4.0 Jersey – Sulphur/Twilight Blue