Our Photo Sleeves and Matted Photo Sleeves are made from bioriented polypropylene (BOPP); our Photo L-Sleeves are made from archival polyester (Mylar). Both these materials are as clear as glass and will not ripple, dimple or pucker over time. Our Glassine Photo Sleeves are made of acid-free, nonplasticized paper - archival safe.

**NEW** We have added acid-free Glassine Rolls for large print interleaving and Polypropylene Film Sleeving for 135, 120, 220 and 70 mm film.

All of our polyproylene and polyester materials have been tested by an independent lab and have passed the Photo Activity Test (PAT). Photos & prints stored in our sleeves will never be adversely affected by being stored in our materials.