Don’t throw out those old blue jeans – they could be used to insulate someone’s house.

“Cotton. From Blue to Green®” is a Cotton Incorporated initiative started in 2006 that gives donated denim a second life by converting it into UltraTouch™ Denim Insulation. To date, the program has received over half a million pieces of denim which has produced approximately 1.5 million square feet of UltraTouch™ Denim Insulation to assist with building efforts for communities in need.

The program has partnered with many organizations, including Habitat for Humanity affiliates, to install home insulation for victims of disasters such as Hurricane Katrina, and for those needing help to finish their homes. They also offer grants to improve community buildings and partner with college and university campuses to host denim collection drives.

Find out how you can donate and maybe even get discounts from participating retailers like American Eagle.