These grey and black printed performance leggings by adidas by Stella McCartney tick lots of fashion boxes. Featuring a fitted silhouette, a trendy snakeskin pattern and a low rise. POSITIVELY CONSCIOUS: Adidas Group scores 4 out 5 by independent ethical brand rating agency Good On You. It uses eco-friendly materials in many products - 100% of its cotton is from sustainable sources and it's committed to use 100% recycled polyester by 2024. It traces and audits almost all of its supply chain to ensure good labour standards, and has committed to reduce carbon and water stress across its whole supplier base.