Calradia Lost Armor Bundle is a mod that will add all the missing armor from the game. All the armors are taken from the latest versions of the game, so you don't have to download the whole game again.

The app is very easy to use and install. Just download it and open the application. Select the appropriate file and press "Install". You can find the full description of the app on the website.

There are 4 armors that people have found so far and they are:

The Aserai Cavalry Armor Set.
The Sturgia Cavalry Armor Set.
The Monster Armor Set.
The famous Hallow Armor Set.
 

 It is a very well-made app.