Wise 50 Quart Swingback Cooler Seat Wise 50 quart Swingback Cooler seat features Rotational molded base with injection molded seat frame Heavy-duty, 28 oz. marine grade vinyl upholstery is mildew resistant and UV treated to withstand fading Plastic mounting plates included Anodized aluminum arms Wise Offshore Seating features a six year warranty on the frame and a three year warranty on upholstery