... b.Durable & tearing resistant c.Customized size,logo d.Recyclable Express delivery bagFeatures and Specifications:1)Material:LDPE or HDPE coextrusion ... and non-printed plain.3)Usage:for post, delivery packing, express delivery, courier mailing4)Size:according to client's specific request ... , PVC, PE/PO, PO/PE, CPE and EVA, etc. Custom Express delivery bag(FZ960)