TheArmory is a set of commonly used materials in medieval armor and weaponry, ranging from chainmail to leather straps to hammered metal.
The textures vary in size from 512x to 1024x.
The materials can be used in conjunction, and are easy to use due to the minimal setup required to use them. Just name materials in your modeling software so they correspond with the materials in this asset, and you should be good! That's all there is to it!
The textures can also be used as a sort of stencil to create your own materials, in case you want to minimize materials used on your mesh.