Stay Groovy 7.5x10.5 Designer Poly Mailers Spring Design outer surface across the front and back and 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 option. 100% recyclable Make your Shipment memorable as you deliver a true unboxing experience to your customer. No more boring white poly mailers as your item now feels more like a gift they cannot wait to unwrap and share.