Abstract SwirlPrint across the front and back With Grey inner lining. 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 options. 100% recyclable