I've run into this as well. Likewise I find that some white/cream pants allow underwear to show through (at least darker colored boxers). My solution has been to just keep shopping around....I find that cucinelli pants are typically opaque.
Originally Posted by tgfny
+1...I prefer their board shorts with the cross ties....I find their sizing to be very strange. I'm a 32" but fit best with a Vilbrequin XL. Strange, but then again the French like their swimsuits tight.