FatMat FatMat dog beds come in 4 sizes and are made to fit pet crates. FatMat pads are machine washable and made in one piece of durable upholstery-grade fabrics filled with a thick polyester batting. Easily portable, the dog mats fit as comfortably in your RV as in your living room. In addition to 9 standard colors in both cotton and suede-like microfiber. For questions or to place an order please call 502-895-3559 and ask to speak to our Concierge Service and we will be glad to help you.