British designer Stella McCartney stays true to her high-eco ethos within her capsule collection for Adidas, offering up design-led performance-wear with a reduced carbon footprint. This white Adidas by Stella McCartney Training Climachill Tee features a round neck with welt finishing, short sleeves, a relaxed fit, a curved hem, side slits with a snap-button fastening, a snakeskin-print chest panel and a snap button closure at the back.