President
This patch indicates that its wearer is a President - the leader of a charter or chapter.
First 9
This patch is only worn by the nine of founding members of the Sons of Anarchy Motorcycle Club.
V. President
Indicates that its wearer is the Vice President of a charter.
Sgt-at-Arms
This patch indicates that its wearer is the "Sergeant-at-Arms" of a charter. The Sergeant-at-Arms is responsible for discipline and security within a charter. He also serves as a bodyguard for the President protecting him from danger - he is almost always at the side of the President.
Secretary
This patch is worn by the Secretary. He is in charge of information and bookkeeping.
Road Captain
This patch is worn by the Road Captain. He is responsible for organizing the route the charter takes on rides, ensuring the safety of club members on the road and ensuring discipline while on rides. There is no Road Captain in the Charming chapter.
Men of Mayhem
A patch for those who have spilled blood, or have gone above and beyond for the good of the club [Source: Sons of Anarchy: The Official Collector's Edition]. Known wearers of the Men of Mayhem patch include Jax Teller, Opie Winston, Juice Ortiz, Allesandro Montez, Rane Quinn, Orlin West, Clay Morrow, Herman Kozik and many other patched members seen in the show.
Redwood
Name of the Mother Charter
Redwood Original
Worn by members who prospected into the mother charter