Blue organic cotton tracksuit for boys by Stella McCartney Kids, patterned with logo lettering in a 3D bubble effect, for a cool, retro-inspired look. Made in mid-weight cotton jersey, it is soft and fleecy on the inside and has stretchy ribbed trims. The sweatshirt top has a casual crew neckline, whilst the joggers have side seam pockets and a drawstring elasticated waistband for a comfortable fit. The Stella McCartney fit can be quite small so choose a size up if you want room to grow.