I am a keen male cyclist, and have been struggling with an issue for some time. I have always worn underwear under my niks for two reasons. One is that everything is kept in place and this prevents any unwanted stimulation from the nature from the riding action, and the second is that any fluid leakage is contained. I know this will gross some people out, but I would like to hear some advice please. I have found g string underwear to be the best compromise because it holds everything in place and gives no underwear line. I have found that wearing no underwear allows my bits to become pinched or uncomfortable. Do I just need to get used to wearing my niks without underwear? Has anyone else had these issues? I am just a regular guy after some good honest advice.