Premium Orthopedic Memory Foam Dog Bed for Small, Medium to Extra Large Pet, Waterproof Internal Liner with Durable External Cover and Bonus External Case WATERPROOF Liner + 2 EXTERNAL COVERS - The bed comes with 1 Water proof internal zipper cover to protect the memory foam, 1 Heavy Duty washable Navy Blue Denim external zipper cover and 1 Extra Bonus MicroSuede brown external case. DURABLE WASHABLE COVER - 100 percent cotton Denim removable cover with strong zipper in gusset style and extra stitching to prolong the life of the bed, wash after wash. GEL MEMORY FOAM ORTHOPEDIC SUPPORT - Top rated quality XL 40"X35"X4" hypoallergenic high density 100 percent solid memory foam pad provide the support and relieves the pain of arthritis, will not flat overtime to promote better sleep and healthy joint for your dogs. THERAPEUTIC COOLING LUXURIOUS COMFORT - Better than average human grade mattress with conforming therapeutic comfort. The combined benefits of pressure point relief, alignment support, cooler sleeping surface, less allergens and motion isolation come together to create the ideal environment for deeper and more restful sleep. HIGHEST QUALITY - Premium materials, quality construction and smart features providing many years of comfort and support with excellent value for your money. Try it yourself and you will love it too.