I transported a 9lb brisket, frozen, from Texas to Haiti. It stayed frozen the whole way, on a trip that was probably 10 hours total. Awesome product. It came recommended to me by other friends working overseas. It’s a great way to move food from the USA to places where good stuff is harder to come by. I love the color, the ice blue is very trendy. It seems to be good quality and durable. Plus pretty comfortable to carry over the shoulder, too. I look forward to getting many years of use out of this thing. Feels like a good investment.