The ice packs are non-toxic, re-usable packs that were used for keeping food items cold while being shipped. They are about 4 lbs each, and I have about a dozen of them.
I have two or three sizes of the insulated bags, which are essentially bubble wrap made with mylar. They also were used to ship perishable food items. I've got about 12 of these, also. Porch pick-up in central Austin