Italian made boots (Zamberlan), I'm very glad they went back to a style that can be resoled.
I know one or two stagehands who have tried re-dying their clothes. It doesn't work very well (even when done by experienced costumers) and tends to get black smudges on things. Here in California we can only get dyes that are pretty environmentally friendly, but not very effective. The really effective ones require a lot of safety equipment and procedures. Most stagehands have: good dress blacks, good blacks, ok work blacks and clothes that we only wear for the first day or two in really dirty locations! Also sometimes the right answer is polyester or other clothing that keeps it's blackness through many cleanings as opposed to something like cotton. My "best" dress blacks are polyester which I hate.
Oh, and I've been known to dispose of my old cotton clothing in the compost bin out back. Cotton breaks down pretty quickly in a good compost!