The Pro-Sorb System offers a unique combination – all the benefits of a luxury Merino lambskin pad with the flexibility to adjust saddle fit and balance. No need to put additional gel or foam pads on top as a second layer, which can often slip and be hard to place accurately. Pro-Sorb gives you multiple choices in one product. * Closed-Cell foam pads slide easily into velcro pockets under the lambskin. These insert pads cover the main weight bearing areas offering additional absorption & padding. * Perfect raiser pad for the front or back of the saddle. * Neat low profile pad that avoids distorting fit of the saddle, but retains breathability & wicking effect of lambskin pad with a clear-spine. * Additional set of insert pads included. WITH PRO-SORB THE CHOICE IS YOURS!