Improper equipment

[BktBallRef]

I would probably warn the player the first time I saw him do it. If his safety wasn't affected by it and obviously it had no influence on the play.

However, I have a different penalty enforcement. This is a five yard penalty for failure to properly wear required equipment during a down. But it also an unsportsmanlike conduct foul, even though it's only 5 yards. (1-5-6 Penalty, 10-4-4a) Since it's a USC foul, it would be enforced from the succeeding spot, not the all but one and it would not bring a long run back.