Each washable mattress pad is made of three layers: a comfortable top; a vinyl waterproof barrier that provides complete protection from bacteria, spills, and urine stains; and a fully elasticized skirt. This reusable bed pad also includes 2" wide elastic bands on each corner for secure attachment onto the mattress. This mattress protector is great for incontinence and bedwetting because it is easy to remove and replace. Bed pads fit mattresses up to 9" deep. Choose from six different sizes: Twin, Twin XL, Full, Queen, King, and California King.