Enderite Armor is the highest tier (besides the Ender Sword, and Tech Armor, Tech Armor currently not craftable)

Enderite has a mine level of 4, higher than diamond, making it the only pickaxe to be able to mine Ancient Ore.  Enderite can be found in the End or crafted with End Stones and a few other resources.  It can craft a pickaxe and sword. It has high mine speed, high damage, high armor, and high durability!