Initiate armour can be obtained after completing the Recruitment Drive quest by buying it from Sir Tiffy Cashien in Falador. It requires 25 Defence and 10 Prayer to wear. This armour has the same stats as its black and white counterparts, but with a prayer bonus (and in the case of the white armour, a higher bonus).
This set of armour cannot be made using the Smithingskill. Because of its low cost and high prayer bonus, players often use this set while training on melee weak opponents as an alternative to Barrows equipment while using the Protect from Meleeprayer due to its high prayer bonus and the fact that Barrows equipment degrades over time (and is expensive to repair).
This armour is also necessary for achieving a medium Falador Task.