Tyvek held sway for awhile as lightweight, tough, and strong packaging, tested and preferred by major shippers and their carriers for soft goods.
Recently, I see more coming in tough plastic bags. Some are partly reflective on one side; all are are hard to rip open. I'm unfamiliar with varieties of trash-bag plastic sheeting, if that is what the material is. Or is it?
What is this packaging, and where can I find specifications and sources?