EchoSmile Rotomolded cooler keeps cold for up to 5 days with recommended 2:1 ice-to-contents. The intermediate insulation layer is made of polyurethane so as to provide superior insulative and high strength. The silicone sealing ring seals the whole space to avoid heat convection and prolong the cryopreservation time.Our coolers offer a range of sizes and designs to meet different needs. Whether you need a small personal cooler or a large high-capacity model, we've got you covered. It will be a perfect tool to cool your drinks, such as beer, beverage,s and juice, etc. The cooler can withstand more than 310 lbs. You can sit or stand on the lid without worrying that it will be broken.Silicon tension latches do not break easily or come loose automatically. UV inhibitors protect the cooler against sun damage. Anti-slide rubber feet help to keep stable. 2 impact rubber absorbing ergonomic grips on each side help easier moving. The drain plug allows you to remove water without turning the cooler upside down.