They sell clear plastic sheeting at Home Depot I think, it's not real clear as I put it over my patio door windows in winter to keep heat in, can't see clearly through it. I freeze my bread & just take out what I need. They may have other types of plastic so you could have a look. Another idea is a place that has oilcloth & other table coverings, that may be what was used, they sell clear heavy plastic by the foot & it is wide maybe 60 inches. My guess is that is what she used, but harder to find places that sell it. It's on a roll on a rack where the oilcloth & other table coverings are. They cut it for you usually. Jan

If you search the internet for reviews - they are an expensive waste of time. They don't do anything to extend the life of your breads. You can make them from linen towels or fabric - lots of instruction available if you search - DIY bread bags.