Heavy-duty poly envelopes resist tears, repel moisture and are available in bright translucent colors for easy organization. Gusset expands up to 1 1/4" to accommodate bulkier materials. Heavy-duty string and button closure is designed for everyday use. Acid-free, PVC-free and archival-quality. Top Load
Poly envelopes with top opening are made of heavy-duty, acid-free polypropylene that resists tears and repels moisture. Gusset expands up to 1-1/4". Envelopes offer a string tie closure.