How do different types of comic book bags (e.g., polyethylene, polypropylene, Mylar) compare in terms of durability and protection?

How do different types of comic book bags (e.g., polyethylene, polypropylene, Mylar) compare in terms of durability and protection?
Admin 22 hours, 19 minutes ago in Comic Book Supplies & Accs
0 Answer(s)