Realmite Armor is the Armor Set obtained from the crafting of Realmite Ingots. It is a very weak set of armor, having a total damage reduction of 33% and only 5000 durability. However, it is recommended that this armor is crafted whilst in the Overworld. This is because it is a tier higher than Iron Armor, as well as the fact that it can easily be obtained. Realmite Ingots can easily be farmed from killing Caveclopes or Cave Crawlers. A full set of Realmite Armor requires 26 Realmite Ingots.
Full Set Bonus
This armor does not have a full set bonus. However, this does not mean you shouldn't craft it. It can become as powerful as higher tier armors if the player enchants it with high-level enchantments.
Realmite Armor requires a total of 26 Realmite Ingots, making it easy to obtain
Elite Realmite Armor is the more powerful successor of the Realmite Armor. However, the Elite Realmite Armor is crafted from Realmite Blocks, making it 9 times more expensive than regular Realmite Armor.
Realmite Armor is the only set of armor without a full set buff.
The durability number won't seem to go down on the armor, but the damage value (if you have NEI) will change when you get hit.