MEMORANDUM **

Defendant Maurice Eunice (“Eunice”) appeals the judgment revoking his supervised release. We affirm.

Eunice, a longtime member of the Hells Angels, was sentenced to 2.5 years in prison and 3 years of supervised release for his conviction of violent crime in aid of racketeering. After he served time in prison, his conditions of supervised release required that he follow the instructions of his probation officer and not associate with convicted felons. Because of the nature of his conviction, Eunice’s probation officer further directed that he not associate with’ any Hells Angels members or prospects. The probation officer repeatedly discussed these conditions .with Eunice.

The district court found that Eunice violated his supervised release conditions by associating with two Hells Angels members and a prospect, one of whom was a convicted felon. The court revoked Eunice’s supervised release and sentenced him to another three months in prison, with his remaining 12 months of supervised release to follow.

*541 We review supervised release conditions, as well as the district court’s decision to revoke supervised release, for abuse of discretion. United States v. Napulou, 593 F.3d 1041, 1044 (9th Cir. 2010); United States v. Verduzco, 330 F.3d 1182, 1184 (9th Cir. 2003). In a sufficiency of the evidence challenge to a revocation of supervised release, we view the evidence in the light most favorable to the government and determine whether any rational judge “could have found the essential elements of a violation by a preponderance of the evidence.” United States v. King, 608 F.3d 1122, 1129 (9th Cir. 2010) (internal quotation marks omitted).

Supervised release conditions prohibiting association with convicted felons or gang members are not impermissibly vague. See id. at 1128-29; United States v. Vega, 545 F.3d 743, 749-50 (9th Cir. 2008). To avoid the “potentially vague outer boundaries” of “association,” we have cabined its dictionary definition to exclude “incidental contacts.” King, 608 F.3d at 1128. Here, the district court found, based on persuasive evidence, that Eunice’s contacts were not casual and accidental, but rather were purposeful. We agree. Viewing the evidence in the light most favorable to the government, a rational judge could conclude that Eunice violated his supervised release conditions and knew that the Hells Angels member with whom he spoke was a convicted felon.

AFFIRMED.