Poly Resin Bed - Our patented design provides firm, even support no pillow or cushion can match AND they are protected from dogs that chew! This bed's unique design tucks the fabric panel inside a PVC frame - safely protected from chewing dogs. 6 sizes. Lightweight, non-corrosive, ideal for outdoor or indoor use. 40 ounce solid vinyl is our most durable fabric. This heavy duty material has shown to hold up better than any fabric we have tested in animal shelters, boarding kennels, and dog training facilities. It is a smooth, non-porous, easy to clean fabric similar to what is used on truck tarps and gym mats. "Chewproof" designs for kennels, shelters and chewing puppies Soft, off the floor comfort Lasts for years Easy to clean and deodorize Replaceable fabrics and parts