Large Duralopes® live up to their name. They're a classy, durable envelope that is perfect for keeping important papers organized. It's a great way to promote your school for prospective students and their families OR to provide classroom supplies to teachers and students. The 12" x 9 1/2" x 1" Duralope® is made of a poly satin material and include a strong button and elastic closure for security. The gusset ensures you can store a LOT of papers at once! Customize your Large Duralopes® with a one color imprint of your choice.