Abstract: A dog coat for insulating a dog's body in cold weather. The coat is made from an elastic material for permitting the coat to expand and contract with a dog's body movements. The coat material is also water-repellant to protect the coat from water damage. A front portion of the coat has a concave portion forming a voided area when the coat is worn by a dog for permitting a dog's genitals to remain exposed while the coat covers a substantial portion of a dog's body. A plurality of fasteners are fixedly attached to a portion of the coat for releasably fastening two portions of the coat together around a dog.