Abstract: A pad for a horseback rider's stirrup is adapted for being removably installed in the stirrup, the stirrup having a horizontal foot platform with top and bottom surfaces and an elongate aperture therein, the pad comprised of three layers of polymeric materials of distinct properties and joined to each other by molecular cross-linking. A thin, flexible, high coefficient of friction top layer is adapted for griping, and a thicker mid layer adapted for dampening shock forces, and there is a harder, flexible lower layer. A portion of the pad, integral with the lower layer is adapted to engage the platform aperture and bottom to removably anchor the pad to the stirrup, and the top surface of the platform engages the bottom of the lower layer to vertically support the pad.