JAM Paper® 10 x 13 Tyvek Tear-Proof Open End Catalog Envelopes, Blue, 10/Pack (V021377B)

JAM Paper® Heavy Duty Tyvek Open End Catalog Envelopes are some of the strongest and sturdiest envelopes available on the market. Each envelope is carefully manufactured with 10% of DuPont's recycled Tyvek material and a smooth Blue finish. This heavy duty polymer is waterproof and tear resistant so your documents are sure to reach the destination in pristine condition. The commercial style straight flap provides the perfect amount of protection for your cards, invitations, and other documents. Quickly and easily secure the contents of each envelope by removing the plastic seal under the flap to activate the self-adhesive strip. These document envelopes are 10 x 13 inches so you have plenty of space for all your mailing needs.