Adidas By Stella McCartney - Adidas by Stella McCartney’s black tank top is ideal for keeping cool during your workout. It’s crafted from lightweight cotton jersey which is blended with recycled fibres – central to the designer’s sustainable ethos – and shaped to a relaxed, open-back fit, then printed with a logo at the chest. Team it with leggings and trainers to stay focused during a HIIT session.