Found in Ornate Chests, Vault Armour is Vault Hunters custom armour. Its better than vanilla armour in both protection and looks.
Armour can roll with a rarity. Higher rarity armour will have more space for extra stats. These stats are put under the categories as prefixes and suffixes, with the lowest rarity armour only having 1 of each.
Vault Armor can also be modified using the Artisan Station with a combination of different Foci to let the player control what modifiers the armour has.
Vault Chestplate
Vault chestplate has a unique modifier adds +1 to a random ability while also it's the only armour that has block chance as an implicit.
Vault Leggings
Vault Leggings has a unique modifier adds +1 to a random ability similar to vault chestplate except it does not have block chance as an implicit.
Vault Helmet
Vault Helmet is the only armour piece with lucky hit chance as an implicit and Area Of Effect as a suffix.
Vault Boots
Vault Boots being the only armor piece that has movement speed % as an implicit making you run faster.