6x9 Poly Mailers

6x9 poly mailer Unsurpassed Water & Tear Resistance Superior side seams combined with heavy duty polyethylene make these high quality envelopes highly resistant to water, punctures, and tears. Pressure Sensitive Self Seal Easy packing, tamper-evident, and super secure closure. Light Weight & Time Saving Lower shipping costs combined with faster shipment preparation equal big savings over other packaging option. 100% recyclable