Was passing by and noticed your question by occasion.
I don't play Tera for like last 4 years, but as far as I remember almost every armor was censored one way or another. Leather line suffered the least. Most armors, both cloth and heavy, have some stupid ugly pants added (and some leather armors too, except ones that had pants to begin with). Also a lot of cloth and leather armors have patches to hide some skin.
But censorship was basically gone since going f2p. They even re-released some armors uncensored as costumes later. I believe that new armor sets don't have censorship since then (it would be actually quite stupid to censor things after release of devilicious outfits and such).