The bolster cushion has a separate inner cushion, fitted with a removable outer cover and inner water-resistant liner. The bed's sidewalls also benefit from a memory foam fill, providing additional support, as well as shielding your pet from unwanted drafts. The outer covers are removable for washing. Faux leather sidewalls with piping and embroidered logo Ideal for dogs who suffer from arthritis or need additional support to their joints, back, and body. The luxury short-pile plush cover provides unrivalled comfort Water-resistant lining to prevent the ingress of water and odor