adidas by Stella McCartney's 'Train' jacket is made from lightweight shell and has a mesh lining for added ventilation. This sporty style has striped ribbed trims, ruched sleeves and a drawstring back that allows you to softly cinch the loose fit. Wear yours while warming up on the track. Outfit 1: Adidas by Stella McCartney Track pants, Adidas by Stella McCartney Sports bra, APL Athletic Propulsion Labs Sneakers, Adidas by Stella McCartney Gym bag. Outfit 2: Adidas by Stella McCartney Leggings.