I made two jersey boxer briefs for my boyfriend in the last days. This is the John boxer briefs pattern from Pattydoo, and I have made them before. They fit really well and are quite easy to make.

You need just half a meter of jersey and some elastic. The front of the briefs is lined, so it does not scratch the skin.
This time I also sewed them on request, because he really likes to wear them. Sadly he did not want to pose in them, so I have no pic how they look worn…