Dwanton Orthopedic Dog Bed for Large Dogs with Gel Memory Foam, Waterproof Dog Sofa, Washable Pet Bed with Four Sided Bolster Cushion, Removable Cover & Non-Slip Bottom, 42", Dark GrayBrand: Dwanton Color: Dark Gray Features: Orthopedic Support: our 4" dual sided reversible padding pairs gel infused memory foam + high density egg crate foam for a good balance between softness and support, which is especially suitable for senior dogs to relieve joint pressure, giving superior sleep experience. You can freely choose the appropriate side. Waterproof Liner, Removable and Washable: Don't worry about wetting the dog bed, the waterproof