Grey cotton flared sleeve hoodie from STELLA MCCARTNEY featuring drawstring hood, long sleeves, tonal stitching and ribbed detailing. POSITIVELY CONSCIOUS: Stella McCartney scores 4 out 5 by independent ethical brand rating agency Good On You. It has set science-based targets to reduce its greenhouse gas emissions. It uses some eco-friendly materials including recycled polyester and organic cotton. It does not use fur, down, leather, or exotic animal skins..