Now, I'm not normally one to get excited about pants, but this is a one off.
I wore Kalenji boxers for the OMM this year and they were bliss. No chaffing, dry in minutes and kept everything where it should be.
I got them from Decatlon and there are male and female versions.
Seriously recommended for long distance events.
Richard.
I used Helly Hanson technical undies with vaseline - no problems.
Nick