US Patent 11229817 Fitness training bags

A fitness training bag is provided and includes a body having a first interior volume therein that houses a bladder disposed within the first interior volume. The bladder defines a second interior volume therein that houses a fluid disposed within the second interior volume. A handle is coupled to the body and is configured to facilitate manipulation of the body to perform an exercise. An outer bag for a fitness bag and a fitness training bag system are also provided.