In Minecraft, chain armor is a mid-tier armor set that provides more protection than leather armor but less than iron armor. It is created by smelting iron ingots in a furnace to create iron nuggets, which are then crafted into chain links. These links are then combined to create chain armor pieces.
Chain armor is relatively lightweight and durable, making it a good choice for players who want a balance of protection and mobility. However, it is not as strong as iron armor, so it is not the best choice for players who are facing tough enemies.