... .Durable & tearing resistant c.Customized size,logo d.Recyclable & waterproof custom mailing bagsFeatures and Specifications:1)Material:LDPE or HDPE coextrusion ... -faking glue, can sprayed with serial bar code, also can make a clear pouch on the bag for packing waybill.our ... , PPU, PVC, PE/PO, PO/PE, CPE and EVA, etc. custom mailing bags(FZ997)