Abstract: A system for accurately determining a size of a pet includes receiving images of the pet (at least three images—front, side, and top are preferred). The system utilizes software (e.g. Artificial Intelligence) to determine a breed of the pet and base sizes of the pet, then the software further hones the base sizes by analysis of the images and, in some embodiments, data from returned merchandise. Once the size is determined, products are presented to the consumer that are in stock and available in the size of the pet. In some embodiments, images of the pet are overlaid with at least one of the products and displayed showing the product on the pet.