DogDay is a male Monstrous Experiment (Toy Canine). He is tall and his pendant is the sun. He is characterized by orange fur that complements his expressive black eyes with white pupils, floppy ears, and a sleek black nose. His features extend to a sunshine-yellow outer mouth and belly, while a touch of Golden-Brown graces his paws, ears, and the left side of his face. DogDay sports a perpetual wide toothless grin, his inner mouth shrouded in mysterious darkness.