Never worry about the security and protection of your sensitive documents and precious items. Whether you're mailing or storing, JAM Paper White Tyvek Peel and Seal Envelopes are the innovative function your business needs. These 9" x 12" x 2" envelopes offer premium-quality protection no other envelope can. They are both tear- and water-resistant so you know they can handle being tossed, thrown, and splashed in transit. Never worry about your letters arriving in pristine condition again! All envelopes have a straight flap and self adhesive strip for a quick and convenient mailing experience every time. Each envelope in this 250 bulk pack is made from DuPont's Tyvek polymer so you know it's tough. Tyvek is a registered trademark of DuPont, an established chemical company that develops the powerful polymer used to make these envelopes. At JAM we love paper but we also love the environment, which is why our White Tyvek Envelopes are made with 10% recycled sustainable materials. Make the eco-friendly transition with your business! Details: White9" x 12" x 2"Straight flapSelf-adhesive strip250 envelopesTyvek