An occlusion device including a tubular braided member having a first end and a second end and extending along a longitudinal axis, the tubular braided member having a repeating pattern of larger diameter portions and smaller diameter portions arrayed along the longitudinal axis, and at least one metallic coil member extending coaxially along at least a portion of the braided member, the at least one metallic coil member having an outer diameter and an inner diameter, wherein the smaller diameter portions of the tubular braided member have an outer diameter and an inner diameter, and wherein at least one of the outer diameter and inner diameter of the tubular braided member is configured to closely match a directly opposing diameter of the metallic coil member.