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

How do different types of comic book bags (e.g., polyethylene, polypropylene, and Mylar) compare in terms of durability and protection?
Admin on May 21 2025 at 08:31 PM in Comic Book Supplies & Accs
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