Frosted Frog 20qt cooler is high-quality rotomolded with extra-thick walls for superior insulation. Manufactured with high-density multi-compound PU Foam walls and an environmentally friendly pressure-injected insulation system. Heavy duty rubber latches and non-slip, non-marking bottoms on all four corners. LED interior light installed. Commercial grade door lid seal gasket. All materials used are non-toxic and FDA-approved.