An animal harness is flexible and includes a dorsal portion and a ventral portion removably coupled together. A front and rear sections of the harness include engagement members coupling the dorsal and ventral portions thereby providing a front opening, leg openings and a rear opening. The harness includes a plurality of attachment members. The modular design of the animal harness allows accessories to be securely attached or removed to and from the attachment members, which reduces manufacturing costs, as each accessory does not require its own method of securely attaching to the animal. The animal harness also allows modules to be added or replaced individually, reducing the cost of ownership, and also allows future accessories to integrate into the existing harness without having to replace the entire harness.