JAM Paper Peel & Seal Envelopes 10" X 13" 10ct - Blue: Self-Seal Mailing Envelopes, Recycled Paper, Gummed Flap

JAM Paper® Heavy Duty Tyvek Open End Catalog Envelopes are some of the strongest and sturdiest envelopes available. Tyvek is composed of high-density polyethylene fibers, a synthetic material that is extremely hard to rip and tear. This type of material is the same used to insulate houses, so you can be assured the materials inside these envelopes will be well protected from the elements. The envelopes themselves, measure 10 x 13 inches and feature an open end flap with a self adhesive strip closure. They are lightweight, tear proof and water resistant, protecting documents from inclement weather, or accidental spills that can occur around the office. Use them for organizing or mailing important documents at school, home, the office, or out on the go. Indestructible Tyvek envelopes PROTECT WHAT'S INSIDE™, so if you are looking for that large heavy duty protective envelope, JAM Paper® Tyvek Catalog Envelopes are a great option!