High Density Foam Durable Car/ Boat cushion Cushion By Gowtun 59" x 78" x 1 3/4" - Walmart.com
The Almighty Boat Cushion: A guide to boat cushion fabrication, foam, fabric, fit & style! - The Canvas Works, Sausalito, San Francisco
Marine Foam (Flexa): The Ultimate Boat Seat Foam – www.MarineVinylFabric.com
WEST MARINE Throwable Foam Cushion | West Marine
Amazon.com: Foamma 4" x 20" x 20" Water-Resistant Dry Fast Foam for Boat Seat Cushions, Outdoor Patio Cushions, Cover Not Included, Made in USA! : Patio, Lawn & Garden
Amazon.com: Foamma 1" x 15" x 27.5" Water-Resistant Dry Fast Foam for Boat Seat Cushions, Outdoor Patio Cushions, Cover Not Included, Made in USA! : Sports & Outdoors