Castelli womens sorpasso bibtightweve put all our best technologies into this exceptional tight progetto x2 seat pad giro straps and a mix of fabrics including our thermoflex core due by applying the technical advancement of hollow core fibers weve made these tights not only lighter than your normal tights but also warmerand they keep you drier now youre ready to put in those long base rides all winter long features a rosso corsa bibtight you know thats special thermoflex core d