drawstring-waist track pants from adidas by Stella McCartney featuring black, organic cotton blend, drawstring fastening waist, two side slit pockets and elasticated ankles. Conscious: This item is made from at least 50% recycled or upcycled materials. For recycled synthetic clothing products we highly recommend using a microfibre-catching washing bag to ensure that no microplastics that can pollute water are released in the process..