Transform your YETI Tundra cooler top into a comfortable seat with the YETI Tundra Cooler Seat-Cushion. Made of tough UV marine vinyl for years of use and carefree maintenance. Comfortable 2" cushion attaches to most coolers and uses rugged stainless steel snap closures. Installation is a breeze. Just screw the bottom part of the snap right onto the cooler lid and attach the cushion.