Last Years Model. All Castelli's best technologies have been put into this exceptional Rosso Corso Bib Knicker made for the long base rides all winter long. Designed with the Progetto X2 seat pad Giro++ straps and a mix of fabrics including their Thermoflex Core Due. By applying the technical advancement of hollow-core fibers these knickers are not only lighter than your normal knickers but also warmer while keeping you drier. Features include: Thermoflex and Thermoflex Core Due fabric Progetto X2 seat pad for maximum comfort Giro++ straps on bib Giro++ leg grippers position the knicker and seal around the shin with reflective tape for high visibility. Black and white logos.