DOUBLE INSULATION: The Stanley adventure cooler is constructed of a high-density polyethylene outer shell, a polypropylene inner layer, and filled with double-wall foam that retains temperature of ice box cooler for up to 4 Days, nearly 40 percent longer than your typical cooler EXTREMELY DURABLE: The high-density polyethylene out shell makes it durable cooler which you can double as seat or stool, the sturdy latches, hinges and silicone gasket are added to lid which makes leak proof, with the durable rubber string you can hold Stanley vacuum bottle or other accessories on flat top EASY TO TRANSPORT: Built for effortless transport, this cooler features sturdy side carry handles, a removable Easy Carry shoulder strap that clips on and off for hands-free convenience, and an integrated lid bungee to secure extra items on the go. It's large yet light, weighing only 9.5lbs when empty. LEAK PROOF: A durable silicone gasket creates a tight seal for superior insulation, while sturdy exterior latches keep the lid securely closed to help prevent leaks. The BPA-free drain plug at the bottom allows for easy, efficient draining and is designed to resist leaks for mess-free use. LIFETIME WARRANTY: ‘BUILT FOR LIFE’ We lead the industry, creating solutions that make life better. We continue to create legendary technology to serve the all-day food and beverage needs. Our products do what we say they do. In any unlikely event if you are unhappy with Stanley products, we will replace them. We guarantee it