NPR's show Planet Money did a fascinating three part show on the life of a tshirt The first two episodes told of how it was materials were gathered, it was sewed, distributed, etc in Bangledesh, amongst other places. It was truly global in scope.
The third episode told the story of a man in his mid-20s who donated his old HS lacrosse jersey #5 to Goodwill. Fast forward a few years, he goes on a humanitarian mission to Africa, and sees someone wearing his old Jersey! The episode then explains how Tshirts donated take on a whole new life after they leave goodwill, etc. Goodwill ships off unsold clothes to say Congo. A man goes and picks out what shirts he thinks would sell, and pays about $1 a shirt. Problem is Americans are XXL, and Africans are M. So someonecuts the sides off the shirt, and makes .10 cents a shirt. Then a seamstress sews the shirt back together for .12 cents, often with scrap fabric from another shirt. It takes on a whole new supply chain. The shirt is then sold for say $2. And the tshirts are a hipsters dream. Motorhead, Jen's Bar Mitzvah, Tony's Pizza, and yes, even Trent Edwards are some of the tshirts you might see...