Looking for a dress for a friend’s 40th. Evening dinner at their house. Need something summery and stylish, as they have quite stylish house/other friends, but not too try hard - anything that is too weddingy is too much, plus want to be able to wear it again. Would pay up to £250 if really nice and can wear again. I’m 5”6 and a size 8 in most things, small frame but relatively muscular - I’m open minded on style.