Engineered to withstand the heaviest chewers, the Zanies® XTRM Game Over Tough Tug is enhanced with double-stitched, strong nylon layers to stand up to the toughest chewing dogs. This incredibly durable toy is made with a water-resistant outer layer, a waterproof thermoplastic coated middle layer, and a canvas inner layer to resist biting strength. This toy also floats, making it a great toy around any body of water!