The retail giant’s new denim promotion begins in August and here’s what you need to know.

One of the ways recycled denim gets used is in building insulation. There is more info here:

https://www.thespruce.com/denim-insulation-pros-cons-5116610

One quality of recycled denim insulation is that it is excellent at absorbing and damping sounds. People looking for high quality audio in their vehicles swear by denim.

** I tried to pick the least spamy source for additional more info. If you have a better source please post.