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What Our Gearhead(R) Experts Are Saying:"This jersey is a dream for summer climbs. The StradaPro 3D fabric on the back breathes so well, and the airflow construction on the front keeps me cool even during intense efforts. The fit is race-tight but comfortable, and I love the extra stability from the elastic waist when the pockets are loaded."When the road tilts upward and the sun beats down, the Castelli Climber's A/C Jersey keeps us cool and efficient. Designed with CFD-based fabric placement and seam construction, this jersey optimizes aerodynamics and airflow for peak performance on steep ascents and fast descents. The front features Flusso 3D fabric for enhanced ventilation, while the StradaPro 3D back boosts breathability. Elbow-length sleeves with raw-cut edges offer a sleek fit, and the elastic waist ensures the jersey stays in place, even with full pockets. Whether we're tackling alpine climbs or summer heat, this jersey delivers light, fast, and dry performance.