Gray Bag with Customized LOGO These Gray Courier Bag, white Courier Bag, Yellow Courier Bag,Green Courier Bag are elementary bag in Express Industry. The LOGO on the bag should offered by customer. A good quality bag could hide item, do not let know whatâ??s in bag, and good strength, not easy to broken. And with adhesive tape, the Courier Bag can not open, unless destroy it. White Courier Express Bag White Bag with Customized LOGO Yellow Bag with Customized LOGO Green Bag with Customized LOGO Blue Bag with Customized LOGO