Castelli Climber’s Jersey The Castelli Climber’s Jersey is designed for the hottest days in the saddle and the toughest mountain climbs. Developed with direct input from professional riders, it delivers exceptional breathability, cooling and aerodynamic performance when temperatures rise. Using ultra-lightweight fabrics and strategically placed mesh panels, the Climber’s Jersey maximises airflow while maintaining the close race fit expected from elite-level cycling kit. This is the kind of jersey riders reach for during mountain stages, long summer climbs and the hottest race days of the season. Key Features Ultra-lightweight performance jersey designed for hot conditions Highly breathable mesh fabrics providing maximum airflow Race-oriented aerodynamic fit Quick-drying materials helping regulate body temperature Full-length front zipper allowing adjustable ventilation Three rear pockets for storing ride essentials Elastic waist with silicone gripper keeping the jersey securely in place Lightweight construction ideal for mountain climbs and summer racing The Climber’s Jersey combines minimal weight with maximum ventilation, making it the perfect choice when the road tilts upward and the temperature climbs. From the World Tour to your door.