Made of 3/4" or 1" thick, 100% wool, which provides excellent shock absorption, releases heat build-up, and holds up well to abuse. The contoured design molds to the horse's back to better fit the shape of the horse and helps to keep the pad in place. The pad bottom is Tacky Too material, which is non-slip, pressure distributing, durable, and won't pull hairs. Heavy oil tanned wear leathers for durability. 31" x 32"