Castelli | Fast Legs Sleeves | Black turbo wing Strategically placed ventilation holes at

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Castelli | Fast Legs Sleeves | Black turbo wing Strategically placed ventilation holes atCastelli Fast Legs Sleeves: Your Aero Advantage on the Bike Speed is a matter of details. The Castelli Fast Legs Sleeves are designed to optimize the aerodynamics of your lower legs and improve your performance during competitions and intense training. Thanks to advanced wind tunnel testing and innovative materials, these compression socks help you generate more speed with less effort . Aerodynamic Perfection Every watt counts when you're riding at