Stella McCartney Kids Sweatshirt. Girls dusty pink 'Betty' sweatshirt by Stella McCartney Kids, made in a soft sweatshirt jersey with a woven feel inside. This lovely long-sleeved design has a colourful floral print on the front. The fit can be quite small, so Stella McCartney advises you to choose a size up if you want room to grow. Size - 4 years RRP: £72 Ref: SB6