ECP's Correction Pads feature an adaptable memory foam support system. 4 pockets on the top of the pad hold 3 shims of memory foam each. Move the shims to wherever support is needed for a semi-custom fit in any saddle! Enjoy the soft comfort of a traditional pad, combined with the shock absorbing power of memory foam. The correction system eliminates sore spots and pressure points, and allows for the same pad to be custom-fitted to multiple saddles and horses