Tufts of selected boar bristle are combined with "spired" nylon to meet the needs of those with hair of average or greater density.
By adding a single long nylon filament to each tuft, Mason Pearson combines the benefits of nylon and boar bristle for those with average or denser hair.
The end of each nylon bristle is rounded to gently stimulate the scalp, reaching down through thicker hair to distribute the natural oils that add body and shine. The smooth nylon filaments also provide detangling. At the same time, the shorter boar bristles clean and polish the hair shaft.
The classic pneumatic cushioned design, originated by Mason Pearson, allows the bristles to conform to the scalp, yielding maximum benefit from each brushstroke.