This may be food for thought. H&M is mentioned for their non-leather purses and lead content. The article does not favor leather either. I have long suspected the plastics in our environment for the cause of so many of our health problems.
http://www.care2.com/greenlivi.....s-pvc.html
There are three pages, so click for the next. Because of all the other stuff, the article itself is not long. You might also be interested in the link to natural leather cleaning.