It becomes trimmed after completion of all quests, as does the quest cape after completing all the diaries. As of an update on 6 May 2016, players can now trim and untrim their achievement diary cape at will. However, if a new quest comes out, the cape will automatically untrim itself, and cannot be equipped, operated, or trimmed until the player completes the new quest. This is the only cape of achievement that has a +4 prayer bonus whether it is trimmed or not.