Workout wear has stepped up a gear with the introduction of Stella's designs for Adidas. Don't just save this piece for the gym, it could also be worn with denim for a relaxed weekend look. Shown here with Adidas by Stella McCartney shorts.

Shell cotton blouson jacket with elasticated trims. Adidas by Stella McCartney jacket has elbow length sleeves, side slit pockets, a high neck with self-ties and is fully lined. 100% cotton; lining: 100% polyester.