Climber's A/C men's jersey | Castelli

Racing in the Alps isn't for everyone, but the products that come out of that experience are absolutely amazing for everyone else. We designed this jersey for hot days in the high mountains based on direct feedback from the pros. They wanted a jersey to stay cool on hot days without sacrificing aerodynamics. The Climber's 4.0 Jersey uses the same CFD-based seam design as our Aero Race 8S Jersey, but we've applied the most aerodynamic 3D mesh fabric we could find to ensure optimal cooling. These fabrics also have excellent softness and elasticity properties, thus also giving this jersey the comfortable fit you need on big days in the mountains. And since this jersey is designed to be worn in the sun, we've also made sure the back fabric blocks 90% of UV rays.

• CFD-based fabric placement and seam design
• Special design ensuring rapid cooling, lightness and aerodynamics
• Shoulder construction ensuring air circulation
• Flusso 3D fabric on the front
• StradaPro 3D back for breathability
• Hemless elbow-length stretch sleeves
• Elastic at the waist to keep the jersey in place and support the pockets
• YKK® Vislon® zipper
• UPF 13