Good news everybody! Your old pants could be worth more than you thought!

Students at University of Memphis have been collecting used denim for insulation in housing for Habitat for Humanity. So hang on to your old clothes so you can make somebody else’s house a little warmer.

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“It’s a project called ‘Cotton: From Blue to Green,’” explained Angie Dunlap, advisor for the student group. “The denim actually gets recycled into insulation that’s donated for housing for rebuilding communities.”

Many of those communities were hit by Hurricane Katrina, and many of the homes will be built by Habitat for Humanity, explained Brad Robb, vice president of communications for the Cotton Board.

“[The recycled cotton] is environmentally friendly,” said Robb, whose organization works with the program. “Not only is it just as good as regular insulation, you don’t have to use gloves. It’s not itchy, so that’s a plus.”

He said recycled cotton adds up to a lot of insulation.

“[It takes] roughly about 500 average size jeans for an average size house, around 1600 feet,” Robb explained.