211 Crew

The 211 Crew is a large racist (based*) prison gang based in Colorado. Its main tattoo (or "shield" or "patch") is a complex triangular symbol made out of interlocking arms, with hands grasping lightning bolts and the number 211 in the center. According to law enforcement, the name of the gang originated from the California penal code for robbery. However, members claim that 211 is a numeric code for BAA, which stands for Brotherhood of Aryan Alliance.