An adamant armour set (sk) is an armour set requiring level 40 defence to equip and is from the Grand Exchange. It can only be made into a set by exchanging it with the Grand Exchange clerks. It contains an adamant platebody, adamant plateskirt, adamant full helmet, and an adamant kiteshield. Right-click on a Grand Exchange clerk and then click sets to exchange the box for the armour. Sets are commonly used to reduce the amount of bank space taken up, which is especially useful for free-to-play players.