Three-hole punched slash jackets offer a quick way to put papers into three-ring binders without punching them. Diagonal slash pockets on both sides of each jacket keep documents safe while making it easy to put them in and pull them out as needed. Archival quality. Waterproof and tear-resistant polypropylene. File Jackets/ Sleeves/Wallets Type: Slash Pocket Jacket; Material(s): Polypropylene; Height: N/A; Width: N/A.