The Batman's armored Batsuit made its hero remarkably bulletproof while simultaneously showing his unique strengths compared to other DC universe characters. The film featured various gadgets and equipment that Batman used to wage his war on crime. But his armor was possibly one of the film's most controversial inclusions, especially among longtime Batman fans.
Source：https://www.cbr.com/the-batmans-bulletproof-armor-subverted-supermans-invulnerability/
