Poly mailers are a necessity in daily life. But there are not many people who really know poly mailers.
Including professional courier bags suppliers like us, there is also a lot of knowledge do not understand.Many people have doubts about the front and back of the courier bag.

Which side is the front and which side is the back?
Please see the illustration. The front side is the side without the strip. The back side is the side with the strip.

If you have any questions, please initiate an inquiry in our product interface or contact us Email sales@igingle.com