lvl 30 mage jobs up to lvl 40; Seer's set.
lvl 30 Malee job's up to lvl 40; centurions set.
lvl 50-60 SMN; Austers set.
lvl 60+; Full AF armour.
lvl 72+; Full AF armour or JSA (Job Specific Armour) (also full armour set's from Sky and Sea are gd).
Further set's will be posted once i look them up to see what's out there, for those members under lvl 30, please use a full matching set of armour souch as the cotton set chainmail beetle lizard etc..