Castelli Technical Fabric and Care Information Provided by Castelli Servizio Corse Velocity Dry Fabric Used in the Aero Race 5.0 jersey.  Lightweight polyester fabric dries almost instantly. Controlled stretch allows for luxurious comfort and unmatched aerodynamic fit. Affinity Lycra Fabric Used on the Team Bib short.  You will feel an immediate connection with AFFINITY LYCRA®. … Continue reading Castelli Technical Fabric & Care