Delta Air Lines uniforms are being recycled into everything from insulation for cars to filling for punching bags and pillows.
But after the "wear testing" finished, the airline ended up with "thousands of garments that could not be worn again," according to Delta in a video.
Because of the Delta logos on the uniforms, the clothing couldn't be donated or reused.
Delta and clothing maker Lands' End, which will make the uniforms, worked with a fabric recycling company to handle the test garments.
The company, Martex Fiber, recycles textiles into fiber for insulation for cars and appliances, as well as filling for pillows and punching bags.
Photos: Delta unveils newly designed uniforms Because of the logos on Delta uniforms, the clothing can't be donated or reused.