Stella McCartney Trousers Red straight-leg drawstring trousers from STELLA MCCARTNEY featuring red, cotton blend, straight leg, elasticated drawstring waistband, front button fastening, front flap pocket, two side slit pockets and rear flap pocket. POSITIVELY CONSCIOUS: Weve partnered with Good On You — an ethical agency that rates how brands perform across various people, planet and animal welfare criteria. This product comes from a Conscious brand that performs well in relation to their impact on animals..