Expandable Core Wrap from Curt G. Joa, Inc. is a patent-pending expandable core wrap design that allows the core to expand within the containment wrap as the product is insulted, regardless of the blended fluff and superabsorbent polymer (SAP) ratio. The expandable wrap enables higher SAP cores, resulting in thinner, more absorbent hygiene product s. Core materials stay contained within the wrap, reducing leakage risk, decreasing skin irritation, and improving skin health. The expandable core wrap design is available for product cores with and without channels.