I couldn't give a monkeys about the environmental credentials of stuff that I buy, but saying that I run everything into the ground and I never chuck stuff away that has any useful life it it. With clothing, once it gets too tatty for "best" it gets relegated to just messing around in, then when I eventually manage to wear it full of holes or it's frayed, then finally it gets cut up and used for rags, so even if the base material isn't "eco-friendly" the fact that I keep stuff a long time and totally wear it out before replacing it probably means it is actually eco-friendly after all.