It would be interesting(to some) to reseach the history of the jockstrap.
So much has been made of the bra, designed originally in France by Philip de Brassier.
The jock is truly American, designed by a Yale professor,by the name of Richard(Dick) Ballisling who was also in charge of the rowing crew. One day, his biggest oresman revealed a big problem in that his manhood and dangling crotch relatives(hertofore unrestrained)were getting in the way of his rowing.
Perplexed,flummoxed, and just by chance one day while roaming his wife's undergarment drawer as he was wont to do, he came across a half bra, for apparently she had cut the other cup off to breast feed their child, back in the days before the snap was invented.
Well Dick, being dick, ran to the athletic department and trussed the one cup bra around the privates of his star oresman, and snapped the strap around his waist." I've invented a ballsling."
Well, they beat Harvard, they beat Cornell, they beat everyone in rowing that year to win the championship.
At the acceptance speech, Dick was alomst choked with emotion when he said "Without John /Ohara /Casey/ Kent's dick and balls in my wife's bra, this could never have happened."
The anagram JOCK stands for John Ohara Casey Kent, although that kid did not invent the jock,Prof. Dick Ballisling did. But the question is, do you wear a BALLSLING, or a JOCK, these days?