Your YETI can do double duty. The Yeti Tundra Seat Cushion has at least 2" of dense foam (3" in the 125qt, 155qt. & 250qt. cushions) and is made of tough, white, UV marine vinyl stitched with GORE TENARA Sewing Thread. Screw the included studs into the cooler lid and snap the cushion in place. Available for all YETI Tundra models. All hardware is stainless steel.