I have a soft toneau on my truck and everytime I drive on dusty gravel roads the bed gets a layer of dust in it. I assume its from the gap between the tailgate and the bed. Is there something out there that can be attached to the bed and tailgate to seal this up and will flex when the gate is opened.

Right now I think a towel would be the cheapest solution, maybe duct tape, but I am sure there are some actual products out there.

 

This came with my tonneau cover and it has worked quite well.

Extang Maxseal

 

Any others out there?
I like that one, just seeing what other options there are.