Premium upholstery and cushions are designed to provide maximum comfort and quality. The backrest has ergonomically molded cushions and extended sides for extra support. A durable injection molded shell with a center pivot point allows the seat to fold flat. Weather-resistant marine-grade vinylUniversal mounting pattern 5" x 5" and 5" x 12"Channel for optional armrestsWarranty: 5 Years Substrate/Frame, 1 Year Upholstery/Cushions