Canine Cooler Bed Covers Does your pet get too warm in the summer months? Add this cool canine cover accessory to your canine cooler dog bed for year round use. Made of high grade washable materials, these covers will add functionality and style to you canine cooler dog bed. The cotton blend Cool Cover allows the cool comfort to flow through to your pet. Cool Cover: Made of 65%/35% Poly/Cotton broadcloth. These machine washable covers allow each pet to feel the cooling sensation of the canine cooler. the cool temperature of the pet bed will penetrate this cover and sooth the pet in style.