Great fit and comfort in a great value bib shortthe key to the excellent comfort of these shorts is the new mavic ergo 3d endurance insert which increases the surface area of your body in contact with the saddle in order to reduce pressure two different densities and thicknesses of foam then work together to absorb shock and control vibrations coming through the bike the bib short itself is made from skin wick st fabric which not only provides excellent abrasion resistance and muscle support