The Engel 35 High Performance Hard Cooler and Ice Box is a tough and durable cooler that is ready for any adventure. This certified bear resistant container retains ice for up to 10 days and is compatible with dry ice. The all silicone gaskets create a durable, near airtight seal so drinks and snacks stay as fresh as when you packed them. The marine-grade unity latch system has adjustable draw latches constructed from steel hardware that doubles as a bottle opener. Keep your cooler where it should be with non-skid cornerstone feet and duolock security holes.