Don’t know what to do with your out of style jeans? Well, donate them and they may just end up in your car.

As an attempt to reduce their cars’ carbon footprint, Ford has decided to use recycled cotton from your blue jeans in the interior of the 2012 Ford Focus.

“Ford is continually looking for greener alternatives,” Carrie Majeske, product sustainability manager told Forbes. “One of our key goals is to use more recycled or renewable materials without compromising performance or durability. Recycled content is a way to divert waste from landfills and reduce the impact of mining virgin material.”

So apparently each new car will have two pairs of jeans in it — which will be used as sound absorption material and carpet backing.

The company already uses recycled yarn on seat covers and resin in the underbody of the vehicle.

As cars are getting more fuel efficient, auto manufacturers are realizing that the effort to go green has to be a all-rounded effort. The use of recycled products, for instance, helps divert waste from landfills and gives older products new use.

Ford is expecting its 2012 Focus to get 40 miles per gallon on the highway, almost an 18 percent improvement over its current model.

The current Focus starts at $16,985 and tops out above $20,000, though the 2012 version is expected to cost more.

Ford is making a huge push towards strengthening its small vehicle market, because traditionally the company’s largest profits came from SUVs and trucks.

This is in line with the company’s goal to become the most fuel-efficient fleet out there. It will also help Ford achieve the 35 MPG government mandated CAFE standard.