Need some extra cushion on your Dune Chair? Restore your Dune Chair with our Dune Refill Inserts. Made with 100% recycled EPS right here in California, you can enjoy your leisure time knowing you're making an eco-friendly choice. To keep your chair in tip-top shape, we recommend using one Dune Refill Insert every 12-18 months, depending on your weight and usage frequency. Quantity 3 cubic feet Materials 100% Recycled EPS (Bean Bag Fill)