what is the c on 49ers jersey

The "C" patch on a football jersey signifies that the player has been named a team captain. The patches are in team colors and are worn on the front left or right breast, depending on other patches worn by the specific team. The number of gold stars on the patch represents the number of years that player has been named captain by a team. If a player has been named captain for longer than four years, the "C" on the patch is gold.