OEM Smead 89544 purple poly envelopes designed for durability and convenience. These heavy-duty envelopes resist tearing and repel water, ensuring your documents remain protected. The clear polypropylene material features a string-and-button closure for secure storage. With a gusset that expands up to 1-1/4 inches, these envelopes can accommodate bulkier materials, holding up to 200 sheets.