Minecraft wiki entry for Armor, associated text: Because of the caps in the calculation, it is possible to achieve maximum protection against specific types of damage with just three pieces of armor. For example, two pieces of armor with Blast Protection IV (EPF 8 each) and a single piece with Protection IV (EPF 4) would give a total EPF of 20 versus explosions. Any additional EPF would be wasted against explosions (but might be useful against other types of damage, if applicable). In Bedrock Edition, a full set of armor with Protection IV gives the maximum damage reduction.[4]