Abstract: The present teachings include mobile enclosures for animals, e.g., pets such as cats. Specifically, the present teachings may include a mobile enclosure device with a housing that can contain an animal therein, and that has a structure suitable for the animal to move around an environment relatively easily while situated within the device. In this manner, the animal can be sheltered within the device, but can remain mobile—e.g., the animal may be able to walk, run, trot, and so on, all while contained within the safety of the mobile enclosure. To this end, a mobile enclosure may include one or more panels providing breathability and visibility, and a relatively lightweight and durable frame that is also relatively flexible, e.g., for increased mobility over and around objects, and/or for storage. Such a device may thus provide safety and security for an animal, e.g., while playing in outdoor environments.