Seems like it would help keep the shorts from getting stinky.
Edit 1: friction is the answer
Edit 2: sorry for this edit – i was trying to make a new post, but Blorp for some reason took me to editing this one instead. Trying to put it back the way it was…


Dunno about you but the boxers get soaked. They would be very little to prevent the shorts from also getting sweaty.
I guess that sorta happens on long rides.