The "Carriage" size waterproof mattress pad is a smaller version of our larger pads and measures 18" x 29".  This is a great size for smaller playards (like the Travel Lite), changing tables, strollers, lap pad, etc.  These soft and absorbent portacrib waterproof mattress pads create a waterproof barrier for many surfaces. Made of a soft and quiet flannelette, these waterproof pads are reversible for longer use and durability. Like all of our products, Made in the USA. Our waterproof mattress pads are machine or hand washable. Made of white polyester flannelette laminated vinyl.