Originally Posted by Orgetorix
Get yourself a white linen square if you don't already have one.
Until then, remember that no square is better than a bad or clashing square.
And, honestly, I don't think that striped jacket works with contrasting trousers. It should be part of a suit, IMO, or not worn at all.
The shirt and tie are nice, though.
Oh, and the contrasting sleeve buttonhole:
I have white! Thanks...