$65.99 1/2 Inch Foam for auto upholstery seats with backing Sold by Continuous Yard | eBay
Foam Series: Selecting the Right Upholstery Foam | Upholstery foam, Foam, Upholstery
16''x30'' High Density Seat Foam Rubber Cushion Replacement Upholstery Firm Pad - Walmart.com 
