Castelli's Fast Feet project: aerodynamic foot coverings for every condition. The road shoecover is made for racing and training in cool conditions and combines aerodynamics with full wind protection and good water protection. The silicone-coated stretch fabric smooths airflow over the feet while keeping out wind and rain. The ankle seam is taped to further enhance water protection, while the cuff has a silicone bead to prevent water from entering from the top. It's not insulated, so it's not made for cold conditions, but from 8C/45F and up it offers good protection while maximizing aerodynamics.
