... your Express. Trust us,Courier Bag flies to you. water proof, damp proof, mould proof Courier Bag:1) Material: LDPE (Natural Bags), PP, PE, PO ... side) 3) Color printing: According to clients' requirement4) Bag style: Heat sealing bag5) Usage: Express delivery and fashion ... capabilities, and are not for sale.Courier Bag,express delivery bag,mailing bag Water proof, Damp proof Courier Bag(KLCB08002)