The Halo Reach armory includes well over 100 armor variations to customize your Spartan's appearance with. Armor permutations are bought with in-game currency called Credits (or cR) and range from as little as 750 cR to 2 million cR. Halo Reach armor and armor effects are simply for asthetic appeal and don't offer any in-game bonuses.
There are a total of ten available slots to customize your Spartan including:
Helmet
Left Shoulder
Right Shoulder
Chest
Wrist
Utility
Visor Color
Knee Guards
Armor Effects
Firefight Voice
