Blue camel hair puff-sleeve ribbed cardigan from STELLA MCCARTNEY featuring V-neck, front button fastening, long puff sleeves and chunky ribbed knit. 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..