Plush Support for Perfect Styling – Designed to complement your favorite cushion covers, our Premium Cushion Inner offers the perfect balance of softness and shape. The filling is 95% duck feathers and 5% duck down and unicurl for lasting loft and support, this inner keeps your cushions looking full and feeling cozy—whether you’re styling your sofa, bed, or favorite chair.Encased in a breathable,  233 Thread count Down Proof Fabric that is durable, lightweight, and easy to maintain.