Fashion VictimG 20

This achievement REQUIRES you to trade either over Xbox Live or locally, as two clothing sets are not possible to acquire in a single playthrough.

Some of the sets will be granted to you through the story, but most of them will be in shops or in chests to be found.

Exactly the two sets that are not LEGITIMATELY acquirable in a single playthrough are the Queen/King set and the Men/Women Masquerade set (Man Hero has to trade for the Women sets of these with a Woman Hero and likely for the other way).