Like many other customers, Sturdy Kids have removed the nightmare of finding uniform that fits. Excellent quality and staff available on the end ofca phone to advice you. M&S no longer do plus fit shirts for sixth Formers. I'm so pleased I tried Sturdy Kids. Their shirts are great (it says 14-15 is the biggest size, but actually that covers 16-18 and just means the shirts are wider but not really long). The trousers are fantastic. My son's school are very hot on uniform, and he can go in feeling smart without having to wear clothes of parachute proportions just to accommodate rugby player thighs and a bit of a tummy!