We spoke with Jarden Consumer Solutions, who happens to make both products, and confirmed that all of their 5 ply vacuum bags are made from poly nylon plastic. They explained that the bags are a polyethylene/nylon blend and all bags are BPA-free. And they are made without PVC and phthalates as well. This is great news for folks who buy their food in bulk and freeze extras for future use!
Photo credit: Jarden Consumer Solutions