An interlayer comprised of a high flow, low molecular weight thermoplastic resin, and at least one plasticizer is disclosed. The use of a high flow, low molecular weight thermoplastic resin, and a plasticizer creates synergy allowing the flow of the interlayer to be increased without sacrificing other characteristics typically associated with an increased flow (e.g., increased blocking, decreased mechanical strength, and decreased manufacturing capability). In this regard, the high flow, low molecular weight thermoplastic resin provides a flow improvement, resulting in a high flow interlayer. As a result, a thinner interlayer can be utilized in forming multiple layer panels because the resulting thinner interlayer has improved flow properties.