Armor Overlay Mod changes the armor bar to show a full range of possible armor levels from 0 to 30.
In addition, the generic armor attributes in 1.9 Minecraft Mods. It’s possible for armors to give partial point; however, the vanilla armor bar can only show full armor points. By default, Armor Overlay Mod shows each 0.25 point with each full piece of armor on the bar and shows in 1/4 armor piece. In contrast, the vanilla version where each one piece of armor shown is two points and will show 1/2 pieces.
See also: Armor Sets Mod