Your armor greatly increases your momentum when you rush forward. When you move at least 20 feet toward the target before attempting a bull rush combat maneuver, you gain a +2 circumstance bonus to the check, and if the attack hits, you can move the target an additional 5 feet. Your armor also grants you a +4 bonus to Strength checks to break down doors and other barriers if you move at least 10 feet toward the barrier before attempting the check.