Horizon Zero Dawn won't be out until February 28, 2017. Those who got early access to the game though have managed to gather some information about the Nora Armor.
About The Nora Armor
The Nora Armor is the first armor that Aloy is going to wear at the start of the game. It's a cheap and basic design that is sold by merchants everywhere. Despite its simplicity, it keeps Aloy safe and she will need this armor while starting out in her adventure. Do take note that that this is still an early guide for an upcoming game.
Protector Light Armor
Horizon Zero Dawn armor customization menu showed several Nora armors to choose from. One of them is the protector light armor. There is reason to believe that a medium or higher version of this armor is available later on.The protector light armor basically offers protection in case Aloy faces a melee attack. There are also modifications available for the armor.
Survivor Light Armor
The Survivor Armor shown in the menu is also a light version. Basically it protects a wearer like Aloy from the elements. There is a possibility that it can also be modified too.
Silent Hunter Armor
With the silent hunter armor, Aloy can choose either the light or the medium version. Both these armors are described as making Aloy "harder to see and hear". The title of the armor seems also a dead giveaway on what these armors can do. Considering that the heroine is battling deadly mechanical beasts, the silent hunter is indispensible.
Both silent hunter armor versions offer stealth bonus. The only difference is that the medium version gives a higher bonus but also more expensive than the light one. More information about the Nora Armor will come out as soon as Horizon Zero Dawn is officially released. A lengthy video preview about its gameplay is available here. Interested players can also read about the latest info on the Cauldrons Dungeons.