> As I understand it, a big part of produced clothing just goes straight to waste to begin with.

My niece runs a business that relies on the way we discard clothes. She buys clothes from suppliers in India who source them from the bales of discarded clothes sent to them from Europe. Her suppliers have in effect sorted through the mountain of discards to find the ones that have sufficient value to sell back to us. She specifically buys clothes that have 'vintage' appeal (think tailored jackets rather than hoodies) and sells them primarily to students in a northern English city. Her business has done well enough to move from market stalls to a dedicated high street store and she is just branching out into 'vintage' kids clothes.