The fastest covering for your feet, for the high speeds of time trialing.
Castelli's Fast Feet project — for time trials_x000D_
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Extensively tested to be the fastest foot covering for time trialing_x000D_
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Silicone-coated fabric over the shoe smooths out airflow_x000D_
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Engineered grooved Lycra® on ankle portion helps detach airflow_x000D_
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Flat polyurethane tape at top to keep shoecover in place
