Most NFL players wear a jockstrap, and some wear a cup
They wear under armor.
Majority of NFL players wear oakley visors.
You can. NFL players can wear any glove they want but they have to have an NfL shield on it.
Some probably do, others might wear compression shorts. It's important to wear something for support.
most do
Boys wear jockstraps for a few reasons. Some wear them to hold a protective cup. Others wear jockstraps for support, to keep their penis and testicles in place while they run or workout.
No, they don't have to wear mouthpiece.
They certainly do.
They certainly do.
spats
for a custom nfl jersey
Approximately 40% of the NFL players don't wear them according to this article. http://sports.espn.go.com/nfl/news/story?id=2314899