At the moment I have a large Plano plastic box, but I want to switch to something soft so my tools and gear rattle less. If anyone has a lead on a good soft bag that is about 42 inches long, and has tie down points on the bottom I'm all ears.
Depends what I'm bringing. For me two plano medium boxes + my 12v fridge/battery setup fit in the back all tied down. It's enough space to get all my camping equipment tied down for offroading.