The Castelli Climberâ€TMs 2.0 Jersey FZ is a weightless 83 grams making it great for long climbs up a mountain. The fabric, which makes minimal contact against the skin, provides the necessary ventilation when you ride hard in hot weather. This design came after a request for a jersey good for riding miles up the Alpine climbs on hot July summer days at the Tour de France. The Climberâ€TMs Jersey is not only lightweight but it fits close to the skin giving an unsurpassed aerodynamic advantage rarely seen in a climberâ€TMs jersey. When tested in a wind tunnel, the Climberâ€TMs Jersey matches the Aero Race 5.0– Castelliâ€TMs fastest race jersey. The Strada Pro 3D fabric on the back reduces contact area with your skin to provide instant drying, making the 2.0 a perfect summer riding jersey. The front and shoulders are made with Flusso 3D fabric which circulates air and cools down the rider. Not only do these fabrics manage body temperature but they are exceptionally lightweight. The arm grippers are mesh raw-edge so the area that has very direct contact with your skin evaporates moisture instantly. Castelli spends the winters working to perfect their cycling clothing. After designing their race jerseys, they are tested by the Team CannondaleGarmin at the Tour Down Under. The input from the world class team helps the designers further perfect their jerseys for the Tour de France. The Climberâ€TMs 2.0 is a pure racerâ€TMs jersey with no unnecessary extras. A pro level race fit, the 2.0 meets the challenges of World Tours races making it great for your own race or long summer weekend ride.