I've just been accepted by a local pamper company to do treatments on a mobile basis to their clients .. however they need me to wear tunic top, have never worn one before and little concerned about sizing - im a generous 18 - probably more 20 - need a tunic urgently, have first booking next weds so plan to order today, should I play it safe and order size 22, do tunics generally come up a size smaller (sure Ive seen this mentioned on salongeek) I dont usually use the bay of e but need to get one quick and reasonable price .. could anyone recommend a make or style thats true to size? xx