Castelli Free Ar 4.1 Jersey FZ
Description
A true classic taken to a whole new level of aero performance, the Free Ar 4.1 Jersey from Castelli is a wholehearted improvement on the Aero Race 4.0, now with a full zip to add extra ventilation as and when you need it. Wearing this in the saddle, you'll slice through the air like butter, with an astonishing energy saving of at least 12 watts at 40kn/h, which allows you to push harder and further than ever before. The 4.1 also imports several features you'd only normally find in a pro jersey at a fraction of the cost, including velocity dimpled fabric to wick sweat and dry quickly, Nervato fabric on the front to bring drag right down, and plenty of breathability built in for summer.
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