I Love these Calvin Klein Briefs (not a Boxer type guy), and the different available colors are a very Nice option. It seems a bit odd that these colored Briefs run slightly larger in size that their counterparts, the all White version. I just recently bought both, and I would say that the Colored Large is about the equivalent of the White X-Large. Therefore, if you happen to buy both the Colored & the all White versions, you will probably find that they fit slightly different.