We have a wide variety of sizes and thickness when it comes to laminating pouches--and here lie the 5 mil pouches! This thickness of films provide better handling and UV protection than 3 mil film, all the while protecting your materials from long-term exposure to water, wind, and sun. With it's slight sturdiness (compared to 3mil), it is resistant to crinkling, folding, and bending. So if you need more of a lightweight but substantial protection, then 5mil pouches are perfect for you! We have lots of sizes and colors to choose from--ask our representatives if you have any questions!