Keep documents secure in these colorful project file jackets. Made of durable polypropylene, they resist spills and tearing while protecting your lettersize documents. The acidfree material provides archivalquality storage. File jackets are closed on two sides with a tuck flap closure for extra security. Opaque backs in five solid colors allow easy colorcoding while the front is clear for easy file identification. Solid colors include red, blue, yellow, green and black.