The Orvis ToughChew Comfortfill-Eco Platform Dog Bed is our version of tough love for the chewer: Our ultimate chew-resistant fabric features a full ripstop nylon base with a bonded microvelvet top layer, designed to guarantee both superior puncture and tear resistance and an extremely soft feel. A sturdy nylon liner adds the final layer of protection. No cording along the seams eliminates chew targets. Even the zipper is tough, constructed of solid brass for long-lasting strength. The go-anywhere Platform silhouette is ideal for dogs who like to stretch out on their side, belly, or back; and our plush and springy ComfortFill-Eco cushion refuses to flatten or clump, no matter how much your dog moves around to get comfortable. We introduced our ToughChew beds in 1998. After years of testing, designing, and re-designing, we updated our ToughChew covers in 2018 (our 4th significant evolution of the fabric!). They are now softer than ever, offer an extra layer of protection, and are still backed by our ToughChew guarantee: If your dog chews through this bed, we'll refund your money. No questions asked.Nylon cover; polyester fill. Washable. Imported. SIZING Small: 28" x 18", dogs up to 40 lbs. Medium: 36" x 24", dogs 40-60 lbs. Large: 43" x 29", dogs 60-90 lbs. X-Large: 53" x 35", dogs 90-120 lbs.