These are the most comfortable boxer briefs I've found.  Most boxer briefs have too much spandex for me and are uncomfortable.  I don't have this problem with the modal material.

I gave them a 4 instead of a 5 based on the cost (they're very expensive) and the fact that they tend to lose some of their structure and begin to ride up your leg in 5/6 months or so (I wish they held their shape longer since they're so expensive).