Abstract: A dynamically expandable rigid waistband system includes one or more rigid belt portions coupled to an expandable and adjustable waistband portion. The ends of one or more rigid belt portions are movably coupled to form a dynamically adjustable rigid belt ring. The dynamically adjustable rigid belt ring can expand or contract as the movably coupled ends of the one or more rigid belt portions move relative to each other by greater or smaller amounts. The dynamically adjustable rigid belt ring is then coupled to the expandable and adjustable waistband portion so that when the expandable and adjustable waistband portion expands or contracts, the dynamically adjustable rigid belt ring similarly expands or contracts to provide the comfort, range of motion, and adaptability of an expandable and adjustable waistband as well as a rigid structure for attaching devices safely and securely to the waistband.