There are no clothing restrictions in the AWI freestyle competition, however, the use of a costume will not increase the likelihood of a higher score if it does not add to the overall entertainment value and crowd appeal of the freestyle routine. Competitors should be aware that use of a costume could actually result in a lower score if it hinders the successful execution of moves or disrupts the flow of the routine. Any costume that the head judge deems to pose a risk of injury to the dog will not be allowed during the competition. Canine costumes should be limited to bandanas or form-fitting coats, like Ashley himself used to wear. Any loose, flowing, or hanging costume on a dog that the head judge deems to pose a safety risk will not be allowed on the field.

The use of any type of prop—an item not worn on the body as clothing—is not permitted while the competing team is on the field. This rule applies regardless of whether the prop is used as part of a pre-routine (before time starts) or otherwise. If a competitor has a question regarding a costume or prop, it is highly recommended that the competitor consult with the judges in advance.