Our bag is made by Tyvek paper what is a special and magical paper.  DuPont Tyvek exclusive shielding material is tenacious and durable. It can experience the test of various extreme conditions. It is light, water resistant, and tear resistant and can defend to pierce. It is not paper, but Tyvek to protect inside documents and goods which you want to protect.  

Out of both side, we can drawing all kinds of beautiful pictures such as nature sights, famous cartoon characters and so on. You would like it!