From British label Stella McCartney Kids, a black short-sleeved sports T-shirt for boys. Ideal for activewear, it is made in soft cotton jersey with a mesh panel on the back for breathability and a comfortable split hem. Blue overstitch detail adds a vibrant pop of colour and a rubberised logo patch in blue, white and green adds a signature designer touch. The Stella McCartney fit can be quite small so choose a size up if you want room to grow.