Fitness models model athletic equipment and apparel in photo shoots. They work with designers, photographers and cosmologists to create photographs that will successfully promote the product. Fitness models are typically physically fit and healthy and many of their photos will feature them participating in athletic or wellness activities. Fitness models usually sign with agencies that help them book jobs and further their careers. Fitness models sell a wide range of products including athletic shoes, sports equipment, yoga supplies, swimsuits and water bottles.