Castelli Fast Feet shoe covers are designed to maximize speed in time trials. Developed from Castelli's Fast Feet project, they optimize airflow around the foot and ankle to reduce drag. Ultra-lightweight and form-fitting, they stay perfectly in place while delivering proven aerodynamic performance.
Main features
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Developed as part of the Castelli Fast Feet project for time trials
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Intensively tested for maximum aerodynamic performance
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Silicone-coated fabric on the shoe to smooth airflow
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Lycra® with grooves at the ankle to promote air release
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Flat polyurethane top band for a secure fit
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Race cut for a precise fit
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Lightweight at 94g
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Recommended temperature range: 10 to 30 °C
Materials
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Shoe part: silicone-coated fabric
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Ankle: Grooved technical Lycra®
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Top band: polyurethane
Strengths
✔️ Maximum aerodynamics validated in specific time trial tests
✔️ Optimized airflow thanks to silicone-coated fabric and grooved Lycra®
✔️ Reliable fit with flat polyurethane top band
✔️ Ultra-lightweight for uncompromising speed gains
✔️ Precise fit with race cut
✔️ Efficient performance across a wide temperature range
