molly mutt Armor Water Resistant Dog Bed Liner, Washable molly mutt armor is a water-resistant liner for your dog bed! fits size medium/large (27" x 36" x 5" ) molly mutt beds. now you no longer have to worry about accidents or the elements soaking your dog bed. simply wipe the armor with a towel-or toss the whole stuff sack with its contents into the washer Sized to fit your molly mutt dog duvet and stuff sack 27-Inch by 36-inch by 4.875-inch