Car Top Cargo Had Any One Used The Ziploc Big Bags Before? I Am Thinking About Buying The XXL Ones.?

Had any one used the ziploc big bags before? I am thinking about buying the XXL ones.? - car top cargo

I am a long way and I am thinking of buying the XXL Ziploc bag. I use a fee for transporting cars roof and I thought that the bag to help dry clothes is when it rains. Has anyone used?