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

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

• Fabric placement and seam execution based on CFD simulation
• Special design ensuring rapid cooling, lightness and aerodynamics
• Shoulder construction ensuring air circulation
• Flusso 3D fabric on the front
• StradaPro 3D back panel for breathability
• Elbow-length stretch sleeves without hem
• Elastic at the waist to keep the jersey in place and support the pockets
• YKK® Vislon® zipper
• UPF 13