The ventilation qualities of Adidas by Stella McCartney’s black Train mesh tank top makes it perfect for high-intensity workouts. The quick-drying stretch fabric is made from recycled plastic waste – part of the label’s ongoing partnership with Parley for the Oceans – and is hallmarked with logo-printed side seams which are slit at the hems. Wear as part of a monochrome ensemble to your next gym class.