So using the Tundra and an open bed as my camp travel setup, I chose to go with the ARB Elements as it can literally remain exposed to the elements that come with camping.
Been using it since May 2019 and it has been in the back of the bed just about each day, both in use and not, and so far has held up well.
I won't be keeping it in the bed through the winter, as both it won't really be required but I don't want to temp fate with snow and ice covering it. Will return to a cooler during the snow covered months.
Here's a few pictures of it.