Engel 240 High Performance Hard Cooler and Ice Box - MBGEngel, the original high performance roto molded cooler was built for toughness and durability. With a full 2 inches of closed cell foam insulation in the lid, on the sides, and the bottom, helping to retain cold and ice for up to 10 days. Unlike the rubber gaskets used by our competitors, Engel's all silicone gaskets create a near airtight seal that is durable and will never lose its shape. The majority of independent reviews consistently rank Engel