Sportswear giant adidas has cemented itself as an essential figure in contemporary sportswear today, reinvigorating retro silhouettes with timeless innovation, as seen with these yellow Firebird tracksuit bottoms. Featuring an elasticated waistband, a straight leg, zipped side pockets and a signature three stripe detail. 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.