This is what Porto's Airbag Kraft paper bags look like

Porto’s Airbag Kraft paper bags are designed for lorries, intermodal, rail and shipping containers.

They have excellent load stabilisation capabilities, withstanding tons of pressure and resistance to load shifting. The bags are constructed with multiple layers of high strength stretch Kraft paper and the inner liner is constructed with coextruded polythene film for added protection against air pressure loss.

In addition they are reusable, recyclable, moisture resistant, and easy to inflate and deflate.