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this formula provides maximum absorption and effectiveness
heel and toe for added comfort and durability
Designed for High Speed Stability
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Castelli | Fast Feet 4 Fietssok | Azzurro Italia zelfmassage set this formula provides maximum absorptionCastelli Fast Feet 4 Cycling Sock: Advanced Aerodynamics for Maximum Speed In the world of performance cycling and triathlon, every detail counts. The Castelli Fast Feet 4 Sock is designed to give riders an aerodynamic advantage at high speed. Thanks to advanced material selection and optimized shaft construction, this sock helps reduce drag, so you can ride more efficiently and faster. Engineered for Aerodynamic Performance The Fast Feet series is
