Originally Posted by grimslade
That's an interesting take. I would say that a pin stripe stands out more starkly than a chalk stripe, so a chalk is actually a little more subtle a choice.
Chalk striping is usually found on flannels, and is considered more of a Friday suit.
Pinstripes can stand out or they can blend, depending on the color of the stripe (white, pearl, light blue, red, etc) and how they are woven (dotted, double, etc.). But they are woven into worsted cloth and considered second only to solids in their suitability for business.