Great for organizing and archiving documents of all sizes. Durable polypropylene material is wear-, tear- and water-resistant. Acid-free and archival safe. Sting and button closure keeps your documents safe and secure. • Acid-free, archival-safe poly protects documents and allows easy viewing of contents. • Durable poly is water- and tear-resistant. • Gusset expands up to 1.25" to hold letter-sized documents. • Protective flap with string tie closure. Great for organizing and archiving documents of all sizes. Durable polypropylene material is wear-, tear- and water-resistant. Acid-free and archival safe. Sting and button closure keeps your documents safe and secure. Pocket/Wallet Type: Documents/Files; Document Size Range: Letter; Overall Expansion: 1.25"; Closure Type: String & Button.