Fashion Conscience www.fashion-conscience.com
look here for all types of clothing, with links to many of the webpages below.

Finisterre www.finisterreuk.com
these guys are cornish, and specialise in super ethical outdoor clothing
Howies http://www.howies.co.uk/
howies aren't as ethical as they used to be since they got bought by timberland, but have plenty of gorgeous organic cotton casual clothes. and their writings/blogs/ideas on life are fantastic, look around.
Gossypium http://www.gossypium.co.uk/
here you will find some basics - t-shirts and sportswear and pants, plus some nicely designed t-shirts with a cause
Resurgence http://www.resurgence.org/
a list of fair trade/eco clothing companies mostly in the uk. websites and contact details are given.
Conscient
http://www.conscient.es/

the recycled shoes! €79 on a spanish website. don't be too fooled by herbivore though, a sweatshop free cause, but not environmentally friendly in production.