Archival polyester offers a glass-clear, acid-free, non-yellowing/clouding, protective sleeve material, that allows you to handle and view works of art on paper.
Why use polyester pockets and sleeves for archival storage
Crystal Clear Archival Polyester Rolls - Hollinger Metal Edge
3 mil Archival Polyester L-Sleeves (10-Pack)
PEL
3 mil Archival Polyester L-Sleeves (10-Pack)
Photo Mounting Sleeves
Photo Mounting Sleeves
Self-Adhesive Polypropylene Pockets with Flap (25-Pack
STOULS CONSERVATION
NYU Preservation — Happy Preservation Week! (Part 3 :)
Acid-Free Print Storage Enclosures