This pad is constructed with a waffle weave neoprene non slip bottom, followed by a layer of felt, and finally covered in a durable 600 denier poly covering with rugged wear leathers making it durable to withstand everyday use. Six shim pockets are strategically located giving you the ability to correct a variety of saddle fitting issues by removing the felt shim pads included. The competitive contour shim saddle pad can used as a stand-alone pad or under a saddle blanket.30" x 18"