Arthur Lee Givens appeals the district court’s order denying his motion for reduction of sentence under 18 U.S.C. § 3582(c)(2) (2006). In his informal appellate brief, Givens failed to challenge the district court’s reasons supporting the denial of relief. Accordingly, Givens has forfeited appellate review of those issues. See 4th Cir. R. 34(b) (“The Court will limit its review to the issues raised in the informal brief.”). Accordingly, we affirm the district court’s order. We dispense with oral argument because the facts and legal contentions are adequately presented in the materials before the court and argument would not aid the decisional process.

AFFIRMED.