We have been ordering some of our evening meals (just me and my wife, working 10-11 hour days) from an online source that ships out the food in an insulated box with dry ice. The insulation batting material is able to be recycled (composted?) and the plastic bags covering the insulation material recycled. However, we were considering stuffing the insulation bags in that space during cold weather camping months for R value. If/when they get wet/punctured/torn we can then recycle them.