The Medline Triumphant Reusable Underpads 30"X36", are a durable, twill underpad that is made of 55% cotton / 45% poly for a comfortable feel on the patient's skin. Plaid face fabric helps to minimize the affects of staining. Vinyl knit barrier withstands the heavy demands of multiple washing and drying cycles while staying soft and leakproof. Exceptional protection against moisture damage to mattresses and bedding. 2 Packs of 12 (24 Total).