Embodiments pertain to a downhole tool that includes a mandrel made of a composite material, a bearing plate disposed around the mandrel, the bearing plate having an angled inner plate surface configured for engagement with a mandrel surface; a composite slip disposed around the mandrel, and having a composite slip body configured with a one-piece configuration, a first cone disposed around the mandrel, and proximate to the composite slip; a second slip disposed around the mandrel; a sealing element disposed around the mandrel; and a lower sleeve coupled to the mandrel, and proximate to a second side of the metal slip.