The Day Birger one is lovely, but too expensive...needs o be £60 tops. Will look out for it in the sale though. Found this on the Bay of E, looks promising - I love purple.
Can't do fitted with buttons at the top as have massive norkage. Have ordered the two M & S ones and will let you know if they are as awful as you think . Going to look at the white stuff website tonight.
btw, short sleeves could work as I could wear a thin long sleeved top underneath.
Cheers for all the help so far.