The supporters significantly minimize the amount of bouncing and heavy blows that occur during the exercises, but doesn't prevent hernia.
So not necessary but compulsory.
What if You Don't Wear Gym Supporter?
People with strong core do not need a supporter but surely it is not a good idea to test without it.
To be honest, Many people only wear gym supporters when it is necessary (according to them)
How To Wear Them?
Wear it like underwear, with the support pouch pressed against your front and the bag covering your male organ.
You can wear whatever you want over the jock, including shorts or gym shorts.
Does it prevent hernia?
A hernia is a condition in which the abdominal wall weakens as a result of chronically high pressure.
Gym supporter minimize the amount of bouncing and heavy blows that occur during the exercises.