You might want to read these articles:
http://www.greensteps.org/steptwo/fairtrade.htm http://organicclothing.blogs.com/my_...l_shoppin.html
It seems that fair trade certification for apparel has a long way to go.
From the second article:
"...a Fair Trade label does not guarantee that a garment was not made under sweatshop conditions. The Fair Trade label only certifies that the cotton was grown under fair trade conditions and does not cover the apparel manufacturing process. "