The Canine Cooler® Brand Thermoregulating Pet Bed is premier comfort for your canine! The Canine Cooler® bed uses SoothSoft™ Comfort Technology to give your dog comfort that is second to none! The fluid-enhanced design offers a dry, lasting cooling effect, combined with a superior cushioning support. No refrigeration is necessary; SoothSoft™ Comfort Technology works at room temperature! Perfect for dogs that are always hot or panting (which means year-round in your 78-80 degree home). Maintenance- free and easily wiped clean. Fleas cannot burrow or lay eggs in this bed. A two year warranty is the best in the bed business! Use it indoors, outside (away from direct sunlight), and in the crate for traveling. Eases heat discomfort, joint problems, skin disorders, hip problems and more. The Canine Cooler's® outer membrane is 20 mil thick - tough enough to park a truck on and not pop! In fact, we guarantee the bed against claw puncture for two years. As tough as this NON-TOXIC membrane is, however, it will not harm your dog should the bed be chewed by accident.* *NOT RECOMMENDED for puppies or adult dogs that chew. Sizes: THE ONYL SIZE AVAILABLE IS : MEDIUM 24" x 36"