The mens chrono pro bib is the result of over two years of exhaustive design research and testing we fit rode tweaked and obsessed until we created what we believe is the best bib short available we paid attention to every detail the straps are custom stretch that we developed because we couldnt find anything that met our standards they move effortlessly when you do never fold or bunch and lay flat against your shoulders and back the leg bands are also custom designed to ensure the short