I recently bought a green shirt. Yes, the color of the shirt is green, but in this case the “green” theme actually goes a bit further. It’s part of Under Armour’s UA Green line, which actually uses recycled materials. After a few test runs, I’m happy to report that recycled shirts feel exactly the same as regular shirts (at least in the case of Under Armour) and I definitely recommend giving them a look: check out the product line on their website. (I bought the Catalyst short-sleeve t-shirt.)
According to their website, 100% of each UA Green product (shirts, shorts, hats, pants, etc) is made from recycled material — primarily plastic bottles. The video below gives an overview of the process.