If your dog chews up their beds, it's because they need instruction from you. Make sure your "baby" knows it's unacceptable to destroy their bed. Teach your dog well -) MegaRuffs Tough Chew Resistant Beds for Dogs Made with chew resistantpolyester ripstop fabric and double stitched seams,Our MegaRuffs Crate Mats are perfect for chronic chewers who typically rip their mats to shreds. Our MegaRuffs Crate Mats can be used alone or inside a wire crate. Made of super strong and durable chew resistantpolyester ripstop fabric Double-stitched seams and reinforced corners strengthen weak spots Sized to fit most wire crates Material Polyester ripstop Sizes X-Small measures 17"L x 11"W Small measures 23"L x 16"W Medium measures 29"L x 18"W Medium/Large measures 35"L x 22"W Large measures 41"L x 27"W X-Large measures 47"L x 29"W Care Machine wash in cold water on gentle cycle. Lay flat to dry. Please Note While these items are designed to resist damage from aggressive chewers, some dogs can destroy anything. Professionals all state that a dog should be closely observed with any new item introduced in to their world to prevent damage to the item and the Dog.