With a two-layer foam construction and a 100-percent waterproof inner lining, the Waterproof Dog Bed by PETMAKER is designed with comfort in mind. The orthopedic dog bed features a 1.75-inch layer of memory foam at the base and another 1.75-inch layer of high-density foam that can support pets weighing 20-45lbs. The removable waterproof inner cover protects the washable dog bed insert from getting wet or soiled if your active pet is a swimmer or enjoys playing in the mud.