We promote our dog beds as the most chew “resistant “on the market. Nothing is chew “proof ". We have heard stories of dogs chewing through light weight chain, 2 x 4's and cement bricks....nothing is chew proof. Our material is the most durable material used in the market place that is safe for your dog. Aramid fabrics, such as Kevlar cannot be used in dog products because although the threads will not break, they tend to become unraveled and if ingested cannot be digested by dogs, and can lead to death.