Stella McCartney collaborates with activewear giant Nike for AW19, creating a signature style of comfortable, sports-inspired silhouettes remixed with expert tailoring and a minimalistic femininity. This black racerback vest from adidas by Stella McCartney features a v-neck, a ruched detail, a contrasting back panel and a sweat-wicking fabric. 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.