The Coolaroo Replacement Dog Bed Cover - Green for will let you get even more life out of your Coolaroo Pet Bed, which keeps pets off the cold, hard ground. Crafted from a unique, quick-drying polyester knit, this cover can be used indoors or out and cleaned easily with a garden hose. Â Size dimensions: Small: 28L x 21.5W in. - weight capacity: 50 lbs. Medium:Â 35.5L x 25.5W in. - weight capacity: 75 lbs. Large:Â 43.3L x 31.5W in. - weight capacity: 100 lbs. Extra Large: 59.8L x 37W in. - weight capacity: 125 lbs. Slides easily onto frame Coolaroo Pet Bed. Knitted high-density polyethylene. UV-treated to resist fading. Water-resistant and quick-drying. Flea- and mite-resistant. Mold- and mildew-resistant. 5-year warranty against UV-degradation. Choose an available size.