All armors have been categorized into one of 4 categories and when choosing your class you will be restricted to wearing certain armors. This is to promote balance between offensive and defensive characters and variety in equipment. There are armor sets to go with all the new metals introduced, as well as some armor sets designed specifically to help with caster itemization.
Robes are the lightest armor class, everyone is able to wear these armors. They most often provide benefits to magic heavy characters, and are the only type of armors pure casters can wear. The one exception is Starsteel, which gives everyone access to a strong armor on account of its light-weight, magical nature.
In order to craft the Copper-Threaded, Iron-Threaded, and Gold-Threaded robes you first must assemble the cloth they are made out of. All cloth recipes involve 1 ingot of the appropriate type and either wool or hemp fibers:
Copper threaded cloth is the only robe cloth currently able to be created with wool:
The rest of the robes need hemp fibers, which will come from farming the new hemp crop.
Then you assemble the actual armor pieces from these cloths as follows:
Light armors don’t provide much protection, but they are better than robes.
Bone leather was added to the game in order to give a much more durable, combat ready light armor than the default leather (which falls apart way too soon). It will be the bread and butter armor for light armor classes.
You can craft the armor by first crafting Bone Leather Cloth:
And then the armor recipes are as you would expect:
There is also an upgraded form of Bone Leather called Steel-Infused Bone, you can make the armor with the Steel-Infused Bone Leather item:
Made from: Steel Powder, Bone, and Leather
Medium armors are worn by characters who find themselves in the thick of things, even if they are not necessarily a tank class.
The only armor out of the normal in the medium class is the chainmail, which is created from iron ingots and leather:
Heavy armors are worn by the tankiest of classes and provide the most protection.
All of these recipes are made from standard ingots as you would expect.
Many of the extra armors used in MK: Ultra have been implemented by a third party mod: BaseMetals, you can find the original wiki, which is a bit out of date, here the content here is a reproduction of the aforementioned for the ease of use of MK: Ultra players. A huge thank you to DrCyano (now retired) and his successor jriwanek for making this mod and keeping it updated!