Based on this product's specifications, here are some alternatives and similar models
Book packaging ColomPac CP020.12.020 flexible protective pouch for books and documents
Summary description:
Flexible book packaging ColomPac CP020.12.020 is a protective pouch designed for storing and shipping books and documents. Made for secure containment, it provides a flexible fit and protection from dust and light handling. Suitable for bookstores, libraries, publishers and e‑commerce shipments, it helps keep printed materials neat and intact during storage and transport.