Washable underpad keeps bedding clean and dry. The quilted design and three-layer construction will not slip, ball or shift. Ibex top cover is highly absorbent and durable through repeated launderings 2 7 oz poly rayon soaker fill to absorb and trap fluids 3 PVC polyester back cover is totally waterproof and provides a non-slip surface 4 Sturdy quilted construction means that the pad maintains its shape 5 Finished edges 6 Quick-drying and stain-resistant 7 36 x 54